APA (7th ed.) Citation

Troeh, F. R., Hobbs, J. A., & Donahue, R. L. (1991). Soil and water conservation (2. ed., 1. printing.). Prentice Hall.

Chicago Style (17th ed.) Citation

Troeh, Frederick R., James A. Hobbs, and Roy L. Donahue. Soil and Water Conservation. 2. ed., 1. printing. Englewood Cliffs, NJ: Prentice Hall, 1991.

MLA (9th ed.) Citation

Troeh, Frederick R., et al. Soil and Water Conservation. 2. ed., 1. printing. Prentice Hall, 1991.