footnotes referenced in highlighted copy:
8 ^ Everett, Walter. The Beatles as musicians. Oxford University Press US/Google Notes to page 202-212.
9 ^ Gottfridsson, Hans Olof, Sheridon, Tony and Beatles. The Beatles from Cavern to Star-Club: The Illustrated Chronicle, Discography & Price Guide 1957-1962. Premium Publishing (1997). pp. 222, 310, 313, 333, 341.
10 ^ Miles, Barry and Badman, Keith. The Beatles Diary: The Beatles years. Omnibus Press (2001). pp. 129.