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1Digital revistaSCIELO
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2by VICTORIA, D. de C., BALLESTER, V., RICHEY, J. E., PEREIRA, A. R., SANTIAGO, A. V.
Published 2011-02-10Anais e Proceedings de eventos bibliotecaEMBRAPA -
3by Degens, E.T. (ed.), International Council of Scientific Unions, Paris (France). Scientific Committee on Problems of the Environment eng, Kempe, S. (ed.), Richey, J.E. (ed.), UNEP, Nairobi (Kenya) eng
Published 1991Texto bibliotecaFAO IT