Cita APA (7a ed.)

Lawrence, G. H. (1955). An Introduction to plant taxonomy. Mcmillan.

Cita Chicago Style (17a ed.)

Lawrence, George H.M. An Introduction to Plant Taxonomy. New York: Mcmillan, 1955.

Cita MLA (8a ed.)

Lawrence, George H.M. An Introduction to Plant Taxonomy. Mcmillan, 1955.