APA (7th ed.) Citation

Recknagel, A. B., & Spring, S. N. (1929). Forestry: A study of its origin, application and significance in the United States. Knopf.

Chicago Style (17th ed.) Citation

Recknagel, Arthur B., and Samuel N. Spring. Forestry: A Study of Its Origin, Application and Significance in the United States. New York: Knopf, 1929.

MLA (9th ed.) Citation

Recknagel, Arthur B., and Samuel N. Spring. Forestry: A Study of Its Origin, Application and Significance in the United States. Knopf, 1929.