APA (7th ed.) Zitazioa

(1978). The Encyclopedia Americana (International ed.). Americana Corporation.

Chicago Style (17th ed.) Zitazioa

The Encyclopedia Americana. International ed. Danbury, Conn.: Americana Corporation, 1978.

MLA (9th ed.) Zitazioa

The Encyclopedia Americana. International ed. Americana Corporation, 1978.