United States. National Park Service. Denver Service Center. (1997). VERP, the Visitor Experience and Resource Protection (VERP) framework: A handbook for planners and managers. National Park Service, Denver Service Center.
Chicago Style (17th ed.) CitationUnited States. National Park Service. Denver Service Center. VERP, the Visitor Experience and Resource Protection (VERP) Framework: A Handbook for Planners and Managers. Denver, Colo.: National Park Service, Denver Service Center, 1997.
MLA (9th ed.) CitationUnited States. National Park Service. Denver Service Center. VERP, the Visitor Experience and Resource Protection (VERP) Framework: A Handbook for Planners and Managers. National Park Service, Denver Service Center, 1997.
Warning: These citations may not always be 100% accurate.