Cita APA (7a ed.)

(1946). Soil science. The Williams & Wilkins Company.

Cita Chicago Style (17a ed.)

Soil Science. Baltimore: The Williams & Wilkins Company, 1946.

Cita MLA (8a ed.)

Soil Science. The Williams & Wilkins Company, 1946.

Precaución: Estas citas no son 100% exactas.