the methods and accomplishments of the STEEP program Michalson, Edgar L. , ed creator Carlson, John E. , ed. Papendick, Robert I. , ed. text flu Boca Raton, Flo CRC Press 1999 1999 monographic eng 233 p. : fots.; ilus.; tablas /by Edgar L. Michalson, Robert I. Papendick and John E. Carlson. Agricultura E.U.A Agricultura Investigacion E.U.A Cultivos E.U.A 630.5 M5 0849311853 83792 010322 20220329142447.0