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iucn commission on national parks prot
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1990 United Nations list of national parks and protected areas =
World Conservation Monitoring Centre Sta, Iucn Commission on National Parks & Prot · World Conservation Union
280 sayfa · 1990
National parks and reserves
1993 United Nations List of National Parks and Protected Areas
World Conservation Monitoring Centre Sta, Iucn Commission on National Parks & Prot · Island Press
359 sayfa · 1994
Environmental Conservation & Protection - General / General / Politics - Current Events / Politics / Current Events / National parks and reserves