APA (7th ed.) Citation

Coe, G., Koehler, C. I., & Koehler, A. (1964). The how and why wonder book of trees. Wonder Books.

Chicago Style (17th ed.) Citation

Coe, Geoffrey, Cynthia Iliff Koehler, and Alvin Koehler. The How and Why Wonder Book of Trees. New York: Wonder Books, 1964.

MLA (9th ed.) Citation

Coe, Geoffrey, et al. The How and Why Wonder Book of Trees. Wonder Books, 1964.