Style de citation APA

Hughes, G., Welfare, S., & Conquest, R. (1990). Red empire: The forbidden history of the USSR. Weidenfeld and Nicolson.

Style de citation Chicago

Hughes, Gwyneth, Simon Welfare, et Robert Conquest. Red Empire: The Forbidden History of the USSR. London: Weidenfeld and Nicolson, 1990.

Style de citation MLA

Hughes, Gwyneth, et al. Red Empire: The Forbidden History of the USSR. Weidenfeld and Nicolson, 1990.