MacDonald, Ian (2005年). Revolution in the Head: The Beatles' Records and the Sixties (Second Revised ed.). London: Pimlico (Rand). ISBN1-84413-828-3。
Kruth 2015, p. 139. Kruth, John[in 英語] (2015年). This Bird Has Flown: The Enduring Beauty of Rubber Soul, Fifty Years On. Milwaukee, WI: Backbeat Books. ISBN978-1617135736。
Suther land, Steve, ed (2003). NME Originals: Lennon. London: IPC Ignite!. p. 34