"Parliamentary Authority" (PDF). NCSL. Archived from the original (PDF) on January 15, 2010. Retrieved August 8, 2022. https://web.archive.org/web/20100115021820/http://www.ncsl.org/documents/legismgt/ILP/99Tab9Pt3.pdf
Mason's Manual (1989 edition), Foreword, NCSL, Denver. p. ix.
"Mason's Manual 2020 Edition". National Conference of State Legislatures. Retrieved 7 January 2025. https://www.ncsl.org/about-state-legislatures/masons-manual-2020-edition