APA (7th ed.) Citation

Martin, E. V., & Clements, F. E. (1939). Adaptation and origin in the plant world. Carnegie institution of Washington.

Chicago Style (17th ed.) Citation

Martin, Emmett Virgil, and Frederic E. Clements. Adaptation and Origin in the Plant World. Washington: Carnegie institution of Washington, 1939.

MLA (9th ed.) Citation

Martin, Emmett Virgil, and Frederic E. Clements. Adaptation and Origin in the Plant World. Carnegie institution of Washington, 1939.