APA

Benton A. H., Werner W. E., . (1958). Principles of field biology & ecology. New York: McGraw-Hill.

Chicago

Benton Allen H, Werner William E, . 1958. Principles of field biology & ecology. New York: McGraw-Hill.

Harvard

Benton A. H., Werner W. E., . (1958). Principles of field biology & ecology. New York: McGraw-Hill.

MLA

Benton Allen H, Werner William E, . Principles of field biology & ecology. New York: McGraw-Hill. 1958.