Cita APA (7a ed.)

Sampson, H., & Tiffany, L. H. (1940). Textbook of Botany. Harper and Brothers Publishers.

Cita Chicago Style (17a ed.)

Sampson, H., y L. H. Tiffany. Textbook of Botany. New York: Harper and Brothers Publishers, 1940.

Cita MLA (9a ed.)

Sampson, H., y L. H. Tiffany. Textbook of Botany. Harper and Brothers Publishers, 1940.