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1by 39547 Abarca, S., 95469 Montenegro, J., 13863 Ministerio de Agricultura y Ganadería, Turrialba (Costa Rica). Project Alternatives of Reduction of CH4, NO y N2O, in the Agriculture, Workshop on Measuring Methane Emission from Cattle Using SF6 Technique Washington, DC (EUA) 24-26 Feb 1998
Published 1998bibliotecaIICA