APA (7th ed.) Citation

United Nations Environment Programme. Industry and Environment Programme Activity Centre. (1992). Guidelines: Development of national parks and protected areas for tourism. World Tourism Organization ; United Nations Environment Programme.

Chicago Style (17th ed.) Citation

United Nations Environment Programme. Industry and Environment Programme Activity Centre. Guidelines: Development of National Parks and Protected Areas for Tourism. Madrid, Spain ; Paris, France: World Tourism Organization ; United Nations Environment Programme, 1992.

MLA (9th ed.) Citation

United Nations Environment Programme. Industry and Environment Programme Activity Centre. Guidelines: Development of National Parks and Protected Areas for Tourism. World Tourism Organization ; United Nations Environment Programme, 1992.