World heritage twenty years later : based on papers presented at the World Heritage and other workshops held during the IVth World Congress on National Parks and Protected Areas, Caracas, Venezuela, February 1992 /

Bibliographic Details
Corporate Authors:	IUCN Commission on National Parks and Protected Areas, World Heritage Committee, World Congress on National Parks and Protected Areas, International Union for Conservation of Nature and Natural Resources
Other Authors:	Thorsell, J. W.
Format:	Conference Proceeding Book
Language:	English
Published:	Gland, Switzerland ; Cambridge : IUCN in collaboration with UNESCO's World Heritage Committee, 1992.
Subjects:	Habitat conservation > Congresses. National parks and reserves > Congresses. Natural areas > Congresses. Nature conservation > Congresses.

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