APA
Waksman S. A., . (1936). Humus Origin, Chemical Composition, and Importance in Nature. London: Bailliere, Tindall and Cox.
Chicago
Waksman Selman A, . 1936. Humus Origin, Chemical Composition, and Importance in Nature. London: Bailliere, Tindall and Cox.
Harvard
Waksman S. A., . (1936). Humus Origin, Chemical Composition, and Importance in Nature. London: Bailliere, Tindall and Cox.
MLA
Waksman Selman A, . Humus Origin, Chemical Composition, and Importance in Nature. London: Bailliere, Tindall and Cox. 1936.