APA (7th ed.) Citation

Spinelli, E., & DePalma, M. N. (2011). Now it is summer. Eerdmans Books for Young Readers.

Chicago Style (17th ed.) Citation

Spinelli, Eileen, and Mary Newell DePalma. Now It Is Summer. Grand Rapids, MI: Eerdmans Books for Young Readers, 2011.

MLA (8th ed.) Citation

Spinelli, Eileen, and Mary Newell DePalma. Now It Is Summer. Eerdmans Books for Young Readers, 2011.