APA (7th ed.) Citation

Peterson, R. T., & McKenny, M. (1968). A field guide to wildflowers of Northeastern and North-Central North America. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Peterson, Roger Tory, and Margaret McKenny. A Field Guide to Wildflowers of Northeastern and North-Central North America. Boston: Houghton Mifflin, 1968.

MLA (8th ed.) Citation

Peterson, Roger Tory, and Margaret McKenny. A Field Guide to Wildflowers of Northeastern and North-Central North America. Houghton Mifflin, 1968.

Warning: These citations may not always be 100% accurate.