Robertson, A. (1967). Requiem: Music of mourning and consolation. Cassell.
Lua i Stíl Chicago (17ú heag.)Robertson, Alec. Requiem: Music of Mourning and Consolation. London: Cassell, 1967.
Lua MLA (9ú heag.)Robertson, Alec. Requiem: Music of Mourning and Consolation. Cassell, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.