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International Working Group on Project 5 : ecologicial effects of human activities on the value and resources of lakes, marshes, rivers, deltas, estuaries and coastal zones : final report / International Working Group on Project 5.
by Programme on Man and the Biosphere.; United Nations Educational, Scientific and Cultural Organization. Man and the Biosphere Programme.;
Year: 1975., Callno: 502.31 INT [Q]
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