Kipps, Michael Smith. Production of field crops : a textbook of agronomy / M. S. Kipps. - 6th edition. - New York : McGraw-Hill, c1959. - x, 790 pages : Illustrations ; 23 cm. - McGraw-Hill publications in the agricultural sciences . Fifth ed. by T. K. Wolfe and M. S. Kipps. Includes bibliographies. Subjects--Topical Terms: Agronomy--United States.Field crops. LC Class. No.: SB185 / .K56 1970 Dewey Class. No.: 633/.00973