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1Sustainable land use systems research: proceedings Sustainable land use systems research: proceedingsby 10835 Indian Council of Agricultural Research, New Delhi (India), 6913 Department of Agriculture, Washington, DC (EUA), 8072 Far Eastern Regional Research Office Rodale Research Center, Kutztown, PA (EUA), 36008 International Workshop on Sustainable Land Use Systems Research New Delhi (India) 12-16 Feb 1990
Published 1992bibliotecaIICA