00420nam a2200133Ia 4500020002200000082001500022245006900037260006000106300001400166650002900180650002700209700002300236700002700259  a709a92-9090-103-5  a631.7 SOC; 0aSocial science perspectives on managing agricultural techonology  aColombobInternational Irrigation Management Instc1989  axv, 224p.  aAgricultural innovations  aAgriculture - Research  aGroenfeldt, David   aMoock, Joyce Lewinger