(1970). My Friends Pictured Within: The subjects of the Enigma Variations as portrayed in contemporary photographs and Elgar's manuscripts. Novello.
Lua i Stíl Chicago (17ú heag.)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.
Lua MLA (8ú heag.)My Friends Pictured Within: The Subjects of the Enigma Variations as Portrayed in Contemporary Photographs and Elgar's Manuscripts. Novello, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.