APA (7th ed.) Citation

Byars, B. C., & Coconis, C. (1981). The summer of the swans. Puffin Books.

Chicago Style (17th ed.) Citation

Byars, Betsy Cromer, and Constantinos Coconis. The Summer of the Swans. New York: Puffin Books, 1981.

MLA (9th ed.) Citation

Byars, Betsy Cromer, and Constantinos Coconis. The Summer of the Swans. Puffin Books, 1981.