APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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.

MLA-referens (8:e uppl.)

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