APA-Zitierstil (7. Ausg.)

Niering, W. A., & Olmstead, N. C. (2017). National Audubon Society field guide to North American wildflowers, Eastern region (Second edition, fully revised.). Knopf.

Chicago-Zitierstil (17. Ausg.)

Niering, William A., und Nancy C. Olmstead. National Audubon Society Field Guide to North American Wildflowers, Eastern Region. Second edition, fully revised. New York: Knopf, 2017.

MLA-Zitierstil (9. Ausg.)

Niering, William A., und Nancy C. Olmstead. National Audubon Society Field Guide to North American Wildflowers, Eastern Region. Second edition, fully revised. Knopf, 2017.