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1by Garcia-Torres, L. (ed.) 183542, FAO, Rome (Italy). Agriculture Dept. eng 181790, World Congress on Conservation Agriculture eng 1-5 Oct 2001 1 Madrid (Spain) 183544, Benites, J. (ed.) 183545, Martinez-Vilela, A. (ed.) 183546, European Conservation Agriculture Federation, Brussels (Belgium) eng 183547
Published 2001Texto bibliotecaFAO IT