APA

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

Chicago

Lawrence George Hill Mathewson, . 1955. An introduction to plant taxonomy. New York: Macmillan.

Harvard

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

MLA

Lawrence George Hill Mathewson, . An introduction to plant taxonomy. New York: Macmillan. 1955.