Martin, John H. Principles of field crop production / John H. Martin, Richard P. Waldren, David L. Stamp. - 4th ed. - Upper Saddle River, NJ : Pearson, 2006. - xxi, 954 p. : ill., maps ; 25 cm. Includes bibliographies and index. ISBN: 0130259675 Subjects--Topical Terms: Field crops--United States.Field crops. Dewey Class. No.: 633.0973 / M381