APA

Gustafson A. F., . (1941). Soils and soil management. New York: McGraw-Hill.

Chicago

Gustafson A F, . 1941. Soils and soil management. New York: McGraw-Hill.

Harvard

Gustafson A. F., . (1941). Soils and soil management. New York: McGraw-Hill.

MLA

Gustafson A F, . Soils and soil management. New York: McGraw-Hill. 1941.