APA (7th ed.) Citation

Sís, P. (1990). Beach ball. Greenwillow Books.

Chicago Style (17th ed.) Citation

Sís, Peter. Beach Ball. New York: Greenwillow Books, 1990.

MLA (8th ed.) Citation

Sís, Peter. Beach Ball. Greenwillow Books, 1990.

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