Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1966 – 31 Jan 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317185942/https://apps.dtic.mil/dtic/tr/fulltext/u2/385853.pdf
Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1966 – 31 Jan 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317185942/https://apps.dtic.mil/dtic/tr/fulltext/u2/385853.pdf
Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1966 – 31 Jan 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317185942/https://apps.dtic.mil/dtic/tr/fulltext/u2/385853.pdf
Wickham, K (1966). Lessons learned - Headquarters 12th Combat Aviation Group (1 May 1966 – 31 Jul 1966) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200157/https://apps.dtic.mil/dtic/tr/fulltext/u2/385757.pdf
Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1966 – 31 Jan 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317185942/https://apps.dtic.mil/dtic/tr/fulltext/u2/385853.pdf
Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1966 – 31 Jan 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317185942/https://apps.dtic.mil/dtic/tr/fulltext/u2/385853.pdf
Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1966 – 31 Jan 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317185942/https://apps.dtic.mil/dtic/tr/fulltext/u2/385853.pdf
Wickham, K (1968). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1967 – 31 Jan 1968) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 19 August 2020. https://web.archive.org/web/20200819223503/https://apps.dtic.mil/dtic/tr/fulltext/u2/390199.pdf
Wickham, K (1970). Lessons learned - Headquarters 12th Combat Aviation Group (1 Feb 1970 – 30 Apr 1970) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200134/https://apps.dtic.mil/dtic/tr/fulltext/u2/511151.pdf
Wickham, K (1968). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1967 – 31 Jan 1968) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 19 August 2020. https://web.archive.org/web/20200819223503/https://apps.dtic.mil/dtic/tr/fulltext/u2/390199.pdf
Wickham, K (1968). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1967 – 31 Jan 1968) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 19 August 2020. https://web.archive.org/web/20200819223503/https://apps.dtic.mil/dtic/tr/fulltext/u2/390199.pdf
Wickham, K (1968). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1967 – 31 Jan 1968) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 19 August 2020. https://web.archive.org/web/20200819223503/https://apps.dtic.mil/dtic/tr/fulltext/u2/390199.pdf
Wickham, K (1968). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1967 – 31 Jan 1968) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 19 August 2020. https://web.archive.org/web/20200819223503/https://apps.dtic.mil/dtic/tr/fulltext/u2/390199.pdf
Wickham, K (1968). Lessons learned - Headquarters 12th Combat Aviation Group (1 Nov 1967 – 31 Jan 1968) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 19 August 2020. https://web.archive.org/web/20200819223503/https://apps.dtic.mil/dtic/tr/fulltext/u2/390199.pdf
Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Aug 1967 – 31 Oct 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200145/https://apps.dtic.mil/dtic/tr/fulltext/u2/388846.pdf
Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Aug 1967 – 31 Oct 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200145/https://apps.dtic.mil/dtic/tr/fulltext/u2/388846.pdf
Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Aug 1967 – 31 Oct 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200145/https://apps.dtic.mil/dtic/tr/fulltext/u2/388846.pdf
Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Feb 1967 – 30 Apr 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200134/https://apps.dtic.mil/dtic/tr/fulltext/u2/386514.pdf
Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Feb 1967 – 30 Apr 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200134/https://apps.dtic.mil/dtic/tr/fulltext/u2/386514.pdf
Wickham, K (1967). Lessons learned - Headquarters 12th Combat Aviation Group (1 Feb 1967 – 30 Apr 1967) (PDF). USA: Department Of The Army. Archived from the original (PDF) on 17 March 2020. https://web.archive.org/web/20200317200134/https://apps.dtic.mil/dtic/tr/fulltext/u2/386514.pdf
"1-145th Aviation Regiment". U.S. Army. 15 March 2020. Archived from the original on 31 October 2020. Retrieved 15 March 2020. https://home.army.mil/novosel/usaace/units/1AB/1-145th