00409     2200145   4500001002100000035002000021245007100041100001700112260004600129300002700175084001300202082001300215650002600228990000900254INLIS000000000006020  a0010-1021000854  aExtension SciencebInformation systems in Agricultural Development  aNiels Roling  aNew YorkbCambrdge University Pressc1988  aXII, 233p;cill; 25 cm  a63.001.8  a63.001.8  aEXTENSION ACTIVITIES.  a5393