Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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