APA

Bennett H. H., . (1947). Elements of Soil Conservation. New York: McGraw-Hill Book Company.

Chicago

Bennett Hugh Hammond, . 1947. Elements of Soil Conservation. New York: McGraw-Hill Book Company.

Harvard

Bennett H. H., . (1947). Elements of Soil Conservation. New York: McGraw-Hill Book Company.

MLA

Bennett Hugh Hammond, . Elements of Soil Conservation. New York: McGraw-Hill Book Company. 1947.