Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.