APA (7th ed.) Citation

Campbell, R. W. (1979). The spy who sat and waited (1a. ed.). Pocket Books.

Chicago Style (17th ed.) Citation

Campbell, R. Wright. The Spy Who Sat and Waited. 1a. ed. Nueva York: Pocket Books, 1979.

MLA (9th ed.) Citation

Campbell, R. Wright. The Spy Who Sat and Waited. 1a. ed. Pocket Books, 1979.