APA (7th ed.) Citation

Zolotow, C., & Pène du Bois, W. (1975). The unfriendly book. Harper & Row.

Chicago Style (17th ed.) Citation

Zolotow, Charlotte, and William Pène du Bois. The Unfriendly Book. New York: Harper & Row, 1975.

MLA (8th ed.) Citation

Zolotow, Charlotte, and William Pène du Bois. The Unfriendly Book. Harper & Row, 1975.

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