APA (7th ed.) Citation

Riehecky, J. (1990). Cooperation. The Child's World, Inc.

Chicago Style (17th ed.) Citation

Riehecky, Janet. Cooperation. USA: The Child's World, Inc, 1990.

MLA (9th ed.) Citation

Riehecky, Janet. Cooperation. The Child's World, Inc, 1990.

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