Citazione Stile APA (7a Edizione)

Lawrence, G. H. M. (1955). An introduction to plant taxonomy. Macmillan.

Citazione stile Chigago Style (17a edizione)

Lawrence, George Hill Mathewson. An Introduction to Plant Taxonomy. New York: Macmillan, 1955.

Citatione MLA (9a ed.)

Lawrence, George Hill Mathewson. An Introduction to Plant Taxonomy. Macmillan, 1955.