APA (7th ed.) Citation

Niering, W. A., & Olmstead, N. C. (1979). The National Audubon Society field guide to North American wildflowers (Eastern region, a Chanticleer Press Edition.). Alfred A. Knopf.

Chicago Style (17th ed.) Citation

Niering, William A., and Nancy C. Olmstead. The National Audubon Society Field Guide to North American Wildflowers. Eastern region, a Chanticleer Press Edition. New York: Alfred A. Knopf, 1979.

MLA (9th ed.) Citation

Niering, William A., and Nancy C. Olmstead. The National Audubon Society Field Guide to North American Wildflowers. Eastern region, a Chanticleer Press Edition. Alfred A. Knopf, 1979.