APA (7th ed.) Citation

(1991). Grolier academic encyclopedia. Grolier.

Chicago Style (17th ed.) Citation

Grolier Academic Encyclopedia. [Danbury, Conn.]: Grolier, 1991.

MLA (9th ed.) Citation

Grolier Academic Encyclopedia. Grolier, 1991.

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