00641     2200217   4500001002100000005001500021008004100036020001800077035001900095041000700114082001100121090001100132100002200143700002000165700002200185245008100207260004000288300003000328650004800358990001700406INLIS00000000001260620210520151947210520|||||||||   |   |||   |||| ||   |   a0-8213-0652-9  0010-0521012606  aen0 a63/RES  a63/RES0 aMichael M. Cernea0 aJohn K. Coulter0 aJohn F.A. Russell00aRESEARCH-Extension-Farmer : A Two-Way continuum for agricultural development  aWashington DCbThe World Bankc1985  axvi, 171 p.: ill.; 28 cm. 0aEXTENSION -- AGRICULTURE RESEARCH -- FARMER  a150/ATA/1989