APA aipamena

Polmar, N., & Allen, T. B. (1997). Spy book: The encyclopedia of espionage. Random House.

Chicago Style aipamena

Polmar, Norman, and Thomas B. Allen. Spy Book: The Encyclopedia of Espionage. New York: Random House, 1997.

MLA aipamena

Polmar, Norman, and Thomas B. Allen. Spy Book: The Encyclopedia of Espionage. Random House, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.