Cita APA (7th ed.)

Grolier Incorporated. (1993). The Encyclopedia Americana (International ed.). Grolier.

Cita Chicago (17th ed.)

Grolier Incorporated. The Encyclopedia Americana. International ed. Danbury, Conn: Grolier, 1993.

Cita MLA (9th ed.)

Grolier Incorporated. The Encyclopedia Americana. International ed. Grolier, 1993.