APA (7e ed.) Bronvermelding

Sykes, C., Waugh, E., Greene, G., & Grisewood, H. (2013). Sykes, Christopher, Papers. DigitalGeorgetown.

Chicago (17e ed.) Bronvermelding

Sykes, Christopher, Evelyn Waugh, Graham Greene, en Harman Grisewood. Sykes, Christopher, Papers. Washington, D.C.: DigitalGeorgetown, 2013.

MLA (8e ed.) Bronvermelding

Sykes, Christopher, et al. Sykes, Christopher, Papers. DigitalGeorgetown, 2013.