APA

Dickson J. G., . (1947). Diseases of field crops. New York: Mcgraw-Hill.

Chicago

Dickson James G, . 1947. Diseases of field crops. New York: Mcgraw-Hill.

Harvard

Dickson J. G., . (1947). Diseases of field crops. New York: Mcgraw-Hill.

MLA

Dickson James G, . Diseases of field crops. New York: Mcgraw-Hill. 1947.