APA (7th ed.) Citation

Elpel, T. J. (2013). Botany in a day: The patterns method of plant identification : an herbal field guide to plant families of North America (Revised & Expanded 6th Edition.). HOPS Press, LLC.

Chicago Style (17th ed.) Citation

Elpel, Thomas J. Botany in a Day: The Patterns Method of Plant Identification : An Herbal Field Guide to Plant Families of North America. Revised & Expanded 6th Edition. Pony, Montana: HOPS Press, LLC, 2013.

MLA (8th ed.) Citation

Elpel, Thomas J. Botany in a Day: The Patterns Method of Plant Identification : An Herbal Field Guide to Plant Families of North America. Revised & Expanded 6th Edition. HOPS Press, LLC, 2013.