APA (7th ed.) Citation

Moldenke, H. N. (1949). American wild flowers. D. Van Nostrand.

Chicago Style (17th ed.) Citation

Moldenke, Harold N. American Wild Flowers. New York: D. Van Nostrand, 1949.

MLA (9th ed.) Citation

Moldenke, Harold N. American Wild Flowers. D. Van Nostrand, 1949.