Cita APA (7th ed.)
Spender, S., Bartlett, L., & Premoli, M. (1993). Caro Christopher: Lettere a Christopher Isherwood 1929-1939. R. Archinto.
Cita Chicago (17th ed.)
Spender, Stephen, Lee Bartlett, i Marina Premoli. Caro Christopher: Lettere a Christopher Isherwood 1929-1939. Milano: R. Archinto, 1993.
Cita MLA (9th ed.)
Spender, Stephen, et al. Caro Christopher: Lettere a Christopher Isherwood 1929-1939. R. Archinto, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.