APA (7th ed.) Citation

Krochmal, A. (1973). A Guide to the medicinal plants of the United States. Quadrangle.

Chicago Style (17th ed.) Citation

Krochmal, Arnold. A Guide to the Medicinal Plants of the United States. [New York]: Quadrangle, 1973.

MLA (9th ed.) Citation

Krochmal, Arnold. A Guide to the Medicinal Plants of the United States. Quadrangle, 1973.