APA (7th ed.) Citation

World Book, Inc. (2015). The World Book encyclopedia. World Book, a Scott Fetzer Company.

Chicago Style (17th ed.) Citation

World Book, Inc. The World Book Encyclopedia. Chicago: World Book, a Scott Fetzer Company, 2015.

MLA (8th ed.) Citation

World Book, Inc. The World Book Encyclopedia. World Book, a Scott Fetzer Company, 2015.

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