APA

Gleason H. A., Cronquist A., . (1964). The natural geography of plants. New York: Columbia University Press.

Chicago

Gleason Henry Allan, Cronquist Arthur, . 1964. The natural geography of plants. New York: Columbia University Press.

Harvard

Gleason H. A., Cronquist A., . (1964). The natural geography of plants. New York: Columbia University Press.

MLA

Gleason Henry Allan, Cronquist Arthur, . The natural geography of plants. New York: Columbia University Press. 1964.