APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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