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1Texto bibliotecaFAO IT
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2by Degens, E.T. (ed.), Kempe, S. (ed.), Herrera, R. (ed.), Soliman, H. (ed.), Weibin, G. (ed.)
Published 1982Texto bibliotecaFAO IT -
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