TY - BOOK AU - Penning de Vries,F.W.T. AU - Teng,P.S. AU - Metselaar,Klaas ED - International Symposium on Systems Approaches for Agricultural Development TI - Systems Approaches for Agricultural Development SN - 079231881-1 (HB : alk. paper) AV - S494.5.S95 I58 1993 U1 - 338.1 20 PY - 1993/// CY - Dordrecht, Boston PB - Kluwer Academic Publishers KW - Agricultural systems KW - Congresses KW - Crops KW - Mathematical models KW - Research KW - Rice N1 - Includes bibliographical references and index ER -