00570     2200205   4500001002100000005001500021035002000036008004100056020001800097041000700115082001300122090001300135100002200148700001800170245004800188260005300236300002900289650002900318990001700347INLIS00000000001198220240306083403  a0010-0521011982240306                |          |        a0-582-02883-3  aen  a63/VAN/a  a63/VAN/a0 aVAN DEN BAN, A.W.0 aHawkins, H.S.1 aAgricultural extension /cVAN DEN BAN, A.W.  aEssex :bLongman Scientific and Technical,c1988  axi, 328 p.: ill.; 22 cm. 4aAGRICULTURE -- EXTENSION  a400/ODA/1990