00730nam a2200193Ia 4500020001500000082002000015100006300035245011600098260003800214300001900252490007200271500000500343690000600348700003400354952010400388964001700492921001000509999001700519  a0896291162  a338.14bIn61.MA  aInternational Food Policy Research Instt. Washington, D.C.  aA meta-analysis of rates of return to agricultural R & D; expede Herculem ?bcBy Julian M. Alston ... [et..al]  aWashington, D.C.bThe Auth.c2000  ax, 148p. Bibl.  aInternational Food Policy Research Instt., research reportv no.113  a  a   aAlston, Julian M. and others.  001040708GRaISIbISId2001-03-26l0o338.14 In61.MApG2250r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a20711  c20711d20711