Hill, B. T. (2003). National Park Service: Efforts underway to address its maintenance backlog. U.S. General Accounting Office.
Chicago Style (17th ed.) CitationHill, Barry T. National Park Service: Efforts Underway to Address Its Maintenance Backlog. [Washington, D.C.]: U.S. General Accounting Office, 2003.
MLA (9th ed.) CitationHill, Barry T. National Park Service: Efforts Underway to Address Its Maintenance Backlog. U.S. General Accounting Office, 2003.
Warning: These citations may not always be 100% accurate.