Second World Conference on national parks
Subtitle: proceedings of a conference sponsored and organized by the National Parks Centennial Commission of the United States of America; the National Park Service of the U.S. Department of the Interior; and the International Union for Conservation of Nature and Natural Resources
By: edited by Sir Hugh Elliott.
Contributors: Elliott, Hugh, Sir, bart.; United States. National ParkService.; National Parks Centennial Commission.; International Union for Conservation of Nature and Natural Resources.
Publisher: International Union for Conservation of Nature and Natural Resources
Published: 1972
Place of publication: Morges (Switzerland)
Language: eng