APA aipamena

Drexel, J. (1994). Encyclopedia of the twentieth century. Jaico.

Chicago Style aipamena

Drexel, John. Encyclopedia of the Twentieth Century. Bombay: Jaico, 1994.

MLA aipamena

Drexel, John. Encyclopedia of the Twentieth Century. Jaico, 1994.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.