APA (7th ed.) Citation

Grolier Incorporated. (2003). The Encyclopedia Americana. Grolier Inc.

Chicago Style (17th ed.) Citation

Grolier Incorporated. The Encyclopedia Americana. Danbury, Conn: Grolier Inc, 2003.

MLA (9th ed.) Citation

Grolier Incorporated. The Encyclopedia Americana. Grolier Inc, 2003.

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