APA aipamena

Watson, J. B. (1974). Success in twentieth century world affairs since 1919. John Murray.

Chicago Style aipamena

Watson, Jack B. Success in Twentieth Century World Affairs Since 1919. John Murray, 1974.

MLA aipamena

Watson, Jack B. Success in Twentieth Century World Affairs Since 1919. John Murray, 1974.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.