APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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