00500naa a2200181 a 450000100080000000500110000800800410001910000200006024500580008026000090013865000260014765000130017365000230018665300130020965300140022265300120023677300700024818038162017-04-17       1989    bl ---       0--  u    #d1 aANDERSON, M. G.  aBenefit analysis of agricultural researchba comment.  c1989  aagricultural research  aAnálise  aPesquisa Agrícola  aAnalysis  aBeneficio  aBenefit  tCandian Journal of Agricultural Economicsgv.37, p.145-148, 1989.