Παραπομπή APA

Cain, S. A. (1971). Foundations of plant geography. Hafner.

Παραπομπή Chicago Style

Cain, Stanley A. Foundations of Plant Geography. New York: Hafner, 1971.

Παραπομπή MLA

Cain, Stanley A. Foundations of Plant Geography. Hafner, 1971.