Protected areas of the world : a review of national systems.
World Conservation Monitoring Centre.
IUCN Commission on National Parks and Protected Areas.
International Union for Conservation of Nature and Natural Resources.
British Petroleum Company.
World Congress on National Parks and Protected Areas(4th :1992 :Caracus, Venezuela)
Gland, Switzerland : IUCN,
1991-
"Protected areas programme"--Cover.
"Published with the financial support of the British Petroleum Company"--P. [4] of cover.
Includes bibliographical references.
Nature conservation
Natural areas.
National parks and reserves.