APA (7th ed.) Citation

Knudsen, J. W. (1966). Biological techniques: Collecting, preserving, and illustrating plants and animals. Harper & Row.

Chicago Style (17th ed.) Citation

Knudsen, Jens W. Biological Techniques: Collecting, Preserving, and Illustrating Plants and Animals. New York: Harper & Row, 1966.

MLA (9th ed.) Citation

Knudsen, Jens W. Biological Techniques: Collecting, Preserving, and Illustrating Plants and Animals. Harper & Row, 1966.