APA (7th ed.) Citation

De Waard, E. J. (1969). Plants and animals in the air. Doubleday.

Chicago Style (17th ed.) Citation

De Waard, E. John. Plants and Animals in the Air. New York: Doubleday, 1969.

MLA (9th ed.) Citation

De Waard, E. John. Plants and Animals in the Air. Doubleday, 1969.