APA (7th ed.) Citation

Hogrogian, N., Hogrogian, N., & Greenwillow Books. (1976). The contest. Greenwillow Books.

Chicago Style (17th ed.) Citation

Hogrogian, Nonny., Nonny Hogrogian, and Greenwillow Books. The Contest. New York : Division of William Morrow & Co., Inc.: Greenwillow Books, 1976.

MLA (8th ed.) Citation

Hogrogian, Nonny., et al. The Contest. Greenwillow Books, 1976.