00486     2200157   4500001002100000035002000021245011200041100003800153260004500191300002400236084001300260082001300273650002600286990000800312990000800320INLIS000000000000462  a0010-1020000264  aSustainable development and the changing needs for impact assessment of international agricultural research  aby Robert W. Herdt; Jhon K. Lynam  aNew Yorkb[Rockefeller Foundation]c1991  c183p.: ills.; 28 cm  a63.001.5  a63.001.5  aPENELITIAN PERTANIAN.  a471  a471