APA (7th ed.) Citation

(1990). A field guide to medicinal plants: Eastern and central North America (1. print.). Houghton Mifflin.

Chicago Style (17th ed.) Citation

A Field Guide to Medicinal Plants: Eastern and Central North America. 1. print. Boston, Mass: Houghton Mifflin, 1990.

MLA (9th ed.) Citation

A Field Guide to Medicinal Plants: Eastern and Central North America. 1. print. Houghton Mifflin, 1990.