An overview, environmental management / United Nations Environment Programme.
Material type:
TextSeries: UNEP report ; 1981, no. 3.Publication details: Nairobi : UNEP, [1981]Subject(s): DDC classification: - 341.7/62 19
- HC79.E5 O9 1981
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"May 1981."
"Na. 81-4630."
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