APA aipamena

Ley, W. (1968). Rockets, Missiles, and Men in Space. New York: The New American Library.

Chicago Style aipamena

Ley, Willy. Rockets, Missiles, and Men in Space. New York: The New American Library, 1968.

MLA aipamena

Ley, Willy. Rockets, Missiles, and Men in Space. New York: The New American Library, 1968.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.