Cita APA (7a ed.)

McDougall, W. B. (1941). Plant ecology (3a. ed.). Lea & Febiger.

Cita Chicago Style (17a ed.)

McDougall, W. B. Plant Ecology. 3a. ed. Philadelphia: Lea & Febiger, 1941.

Cita MLA (8a ed.)

McDougall, W. B. Plant Ecology. 3a. ed. Lea & Febiger, 1941.