APA (7th ed.) Citation

O'Brien, M. J., & Rich, A. E. (1976). Potato diseases. U.S. Dept. of Agriculture, Agricultural Research Service.

Chicago Style (17th ed.) Citation

O'Brien, Muriel J., and Avery E. Rich. Potato Diseases. Washington: U.S. Dept. of Agriculture, Agricultural Research Service, 1976.

MLA (9th ed.) Citation

O'Brien, Muriel J., and Avery E. Rich. Potato Diseases. U.S. Dept. of Agriculture, Agricultural Research Service, 1976.