Cita APA

Stebbins, G. L., Jr. (1967). Variation and Evolution in Plants (6th ptg.). Columbia University Press.

Citación estilo Chicago

Stebbins, G. Ledyard, Jr. Variation and Evolution in Plants. 6th ptg. New York: Columbia University Press, 1967.

Cita MLA

Stebbins, G. Ledyard, Jr. Variation and Evolution in Plants. 6th ptg. Columbia University Press, 1967.