APA Style

World Book, Inc. (2000). The world of animals . Chicago, USA: World Book, Inc.

Chicago Style

World Book, Inc. The world of animals. Chicago, USA: World Book, Inc, 2000. Text.

MLA Style

World Book, Inc. The world of animals. Chicago, USA: World Book, Inc, 2000. Text.

Turabian Style

World Book, Inc. The world of animals. Chicago, USA: World Book, Inc, 2000. Print.