APA (7 ম সংস্করণ) উদ্ধৃতি

(1970). My Friends Pictured Within: The subjects of the Enigma Variations as portrayed in contemporary photographs and Elgar's manuscripts. Novello.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

My Friends Pictured Within: The Subjects of the Enigma Variations as Portrayed in Contemporary Photographs and Elgar's Manuscripts. Borough Green, Sevenoaks, Kent: Novello, 1970.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

My Friends Pictured Within: The Subjects of the Enigma Variations as Portrayed in Contemporary Photographs and Elgar's Manuscripts. Novello, 1970.