APA (7th ed.) Citation

Krochmal, A., Walters, R. S., & Doughty, R. M. (1971). A guide to medicinal plants of Appalachia. U.S. Dept. of Agriculture, Forest Service.

Chicago Style (17th ed.) Citation

Krochmal, Arnold, Russell S. Walters, and Richard M. Doughty. A Guide to Medicinal Plants of Appalachia. Washington, D.C.: U.S. Dept. of Agriculture, Forest Service, 1971.

MLA (9th ed.) Citation

Krochmal, Arnold, et al. A Guide to Medicinal Plants of Appalachia. U.S. Dept. of Agriculture, Forest Service, 1971.