Colin Larkin, ed. (1997). The Virgin Encyclopedia of Popular Music (Concise ed.). Virgin Books. p. 1106. ISBN 1-85227-745-9. 1-85227-745-9
Colin Larkin, ed. (1997). The Virgin Encyclopedia of Popular Music (Concise ed.). Virgin Books. p. 1106. ISBN 1-85227-745-9. 1-85227-745-9
Brown, Phill (2010). Are We Still Rolling?: Studios, Drugs and Rock 'n' Roll – One Man's Journey Recording Classic Albums. Hal Leonard Corporation. p. 10. ISBN 978-1-4768-5609-4. Retrieved 5 July 2015. 978-1-4768-5609-4
Colin Larkin, ed. (1997). The Virgin Encyclopedia of Popular Music (Concise ed.). Virgin Books. p. 1106. ISBN 1-85227-745-9. 1-85227-745-9
Davis, Sharon (2012). Every Chart Topper Tells a Story: The Seventies. Random House. p. 293. ISBN 978-1-78057-410-3. Retrieved 5 July 2015. 978-1-78057-410-3