Cita APA

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

Citación estilo Chicago

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

Cita MLA

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