Cita APA

Waksman, S. A. (1938). Humus: Origin, chemical composition, and importance in nature (2a. ed.). Williams and Wilkins.

Citación estilo Chicago

Waksman, Selman A. Humus: Origin, Chemical Composition, and Importance in Nature. 2a. ed. Baltimore: Williams and Wilkins, 1938.

Cita MLA

Waksman, Selman A. Humus: Origin, Chemical Composition, and Importance in Nature. 2a. ed. Williams and Wilkins, 1938.

Warning: These citations may not always be 100% accurate.