APA (7th ed.) Citation

Deacon, R. (1977). Who's who in spy fiction. Elm Tree Books.

Chicago Style (17th ed.) Citation

Deacon, Richard. Who's Who in Spy Fiction. London: Elm Tree Books, 1977.

MLA (9th ed.) Citation

Deacon, Richard. Who's Who in Spy Fiction. Elm Tree Books, 1977.