APA (7th ed.) Citation

Gleason, H. A., & Cronquist, A. (1965). The natural geography of plants (2. print.). Columbia Univ. Press.

Chicago Style (17th ed.) Citation

Gleason, Henry A., and Arthur Cronquist. The Natural Geography of Plants. 2. print. New York [u.a.]: Columbia Univ. Press, 1965.

MLA (9th ed.) Citation

Gleason, Henry A., and Arthur Cronquist. The Natural Geography of Plants. 2. print. Columbia Univ. Press, 1965.