Lua APA (7ú heag.)

Spender, S., & Bartlett, L. (1980). Letters to Christopher. Black Sparrow Press.

Lua i Stíl Chicago (17ú heag.)

Spender, Stephen, agus Lee Bartlett. Letters to Christopher. Santa Barbara: Black Sparrow Press, 1980.

Lua MLA (8ú heag.)

Spender, Stephen, agus Lee Bartlett. Letters to Christopher. Black Sparrow Press, 1980.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.