Dyfyniad APA

Dickson, J. .. (1947). Disease of Field crops. McGraw Hill Book Company, Inc.

Dyfyniad Arddull Chicago

Dickson, James .G. Disease of Field Crops. New York: McGraw Hill Book Company, Inc, 1947.

Dyfyniad MLA

Dickson, James .G. Disease of Field Crops. McGraw Hill Book Company, Inc, 1947.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.