APA (7th ed.) Citation

Cohen, M., & Hoban, L. (1988). It's George! Greenwillow Books.

Chicago Style (17th ed.) Citation

Cohen, Miriam, and Lillian Hoban. It's George! New York: Greenwillow Books, 1988.

MLA (9th ed.) Citation

Cohen, Miriam, and Lillian Hoban. It's George! Greenwillow Books, 1988.