APA (7th ed.) Citation

(1981). The Encyclopedia Americana (International ed.). Grolier.

Chicago Style (17th ed.) Citation

The Encyclopedia Americana. International ed. Danbury, Conn: Grolier, 1981.

MLA (9th ed.) Citation

The Encyclopedia Americana. International ed. Grolier, 1981.

Warning: These citations may not always be 100% accurate.