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1A meta-analysis of rates of return to agricultural R & D: ex pede herculum? A meta-analysis of rates of return to agricultural R & D: ex pede herculum?by Alston, J.M., International Food Policy Research Inst., Washington, DC (USA). Global and Regional Program on Science and Technology Policy eng, Chan Kang, C., Marra, M.C., Pardey, P.G., Wyatt, T.J., California Univ., Davis (USA). Agricultural Issues Center eng
Published 2000Texto bibliotecaFAO IT