2014). PaulTrynka, "George Harrison: The Apple Years 1968–75" (页面存档备份,存于互联网档案馆), TeamRock, 8 October 2014 (retrieved 27 November 2014). PaulTrynka, "George
Hawkwind》. Omnibus Press. 2004: 第79-80頁. ISBN 1-84449-101-3 (英语). 主編:PaulTrynka. The Beatles 10 Years That Shook The World. Dorling Kindersley/Mojo (magazine)
Four Decades of Great Psychedelic Rock》(2003)ISBN 978-0634055485,第132頁 PaulTrynka《Iggy Pop: Open Up and Bleed》(2007)ISBN 978-0767923200,第95頁 Dick Taylor