5Mantell, Michael A.; Managing National Park System Resources: Handbook on Legal Duties, Opportunities, and Tools;The conservation Foundation, Washington,D.C.; 1991.
5WANG Lian- yong. On the Contribution of China National Forest Parks Operation in Chongqing to the Visitors and Local Communities[C] //. In Taiich Ito. ed. Social Roles of Forests for Urban Population: Forest Recreation, Landscape, Nature Conservation, Economic Evaluation and Urban Forestry. Tokyo: Japan Society of Forest Planning Press, 2004.
