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3Digital revistaSCIELO
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6Digital revistaSCIELO
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11by Lefroy, E.C. (ed.), Agriculture as a Mimic of Natural Ecosystems eng 2-6 Sep 1997 Williams (Australia), Hobbs, R.J. (ed.), O'Connor, M.H. (ed.), Pate, J.S. (ed.)
Published 1999Texto bibliotecaFAO IT