APA (7th ed.) Citation

Lawrence, G. H. (1951). Taxonomy of vascular plants. Macmillan Co.

Chicago Style (17th ed.) Citation

Lawrence, George H. Taxonomy of Vascular Plants. New York: Macmillan Co, 1951.

MLA (9th ed.) Citation

Lawrence, George H. Taxonomy of Vascular Plants. Macmillan Co, 1951.