journalist))《HammeroftheGods: The Led Zeppelin Saga(英语:HammeroftheGods (book))》William Morrow & Co(1985)ISBN 0-688-04507-3,第28–29頁 Jonathan Buckley《The Rough
Genius in the Quantum Revolution.. Joseph Henry Press. 2004. ISBN 1-280-20894-5. OCLC 748531703. Hammer, Olav. Claiming Knowledge: Strategies of Epistemology
University Press. 2003. ISBN 978-0-521-80192-8. Davis, Stephen. HammeroftheGods: The Led Zeppelin Saga. London: Pan. 1995 [1985]. ISBN 978-0-330-34287-2
Gulla)《Guitar Gods: The 25 Players who Made Rock History》ABC-CLIO(英语:ABC-CLIO)(2009)ISBN 0-313-35806-0,第101頁 Jeff Wagner《Mean Deviation: Four Decades of Progressive