Mitchell, N., & Conservation Study Institute (U.S.). (2006). Keeping national parks relevant in the 21st century: A report on a conference convened by the National Park Service Northeast Region and the National Parks Mid-Atlantic Council at Independence National Historical Park, Philadelphia, Pennsylvania, October 14-15, 2005. Conservation Study Institute.
Chicago Style (17th ed.) CitationMitchell, Nora., and Conservation Study Institute (U.S.). Keeping National Parks Relevant in the 21st Century: A Report On a Conference Convened By the National Park Service Northeast Region and the National Parks Mid-Atlantic Council At Independence National Historical Park, Philadelphia, Pennsylvania, October 14-15, 2005. Woodstock, Vt.: Conservation Study Institute, 2006.
MLA (8th ed.) CitationMitchell, Nora., and Conservation Study Institute (U.S.). Keeping National Parks Relevant in the 21st Century: A Report On a Conference Convened By the National Park Service Northeast Region and the National Parks Mid-Atlantic Council At Independence National Historical Park, Philadelphia, Pennsylvania, October 14-15, 2005. Conservation Study Institute, 2006.