APA (7th ed.) Citation

Craighead, J. J. (1963). A field guide to Rocky Mountain wildflowers: From northern Arizona and New Mexico to British Columbia. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Craighead, John J. A Field Guide to Rocky Mountain Wildflowers: From Northern Arizona and New Mexico to British Columbia. Boston: Houghton Mifflin, 1963.

MLA (9th ed.) Citation

Craighead, John J. A Field Guide to Rocky Mountain Wildflowers: From Northern Arizona and New Mexico to British Columbia. Houghton Mifflin, 1963.