APA (7th ed.) Citation

Prelutsky, J., & Abolafia, Y. (1983). It's Valentine's Day. Greenwillow Books.

Chicago Style (17th ed.) Citation

Prelutsky, Jack, and Yossi Abolafia. It's Valentine's Day. New York: Greenwillow Books, 1983.

MLA (9th ed.) Citation

Prelutsky, Jack, and Yossi Abolafia. It's Valentine's Day. Greenwillow Books, 1983.