Cita APA (7a ed.)

Dungan, G. H., & Ross, W. M. (1957). Growing field crops. McGraw-Hill.

Cita Chicago Style (17a ed.)

Dungan, George H., y William M. Ross. Growing Field Crops. New York: McGraw-Hill, 1957.

Cita MLA (8a ed.)

Dungan, George H., y William M. Ross. Growing Field Crops. McGraw-Hill, 1957.