APA

Lawrence G. H. M., . (1951). Taxonomy of vascular plants. New York: Macmillan.

Chicago

Lawrence George Hill Mathewson, . 1951. Taxonomy of vascular plants. New York: Macmillan.

Harvard

Lawrence G. H. M., . (1951). Taxonomy of vascular plants. New York: Macmillan.

MLA

Lawrence George Hill Mathewson, . Taxonomy of vascular plants. New York: Macmillan. 1951.