Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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