^Albright, Horace M. as told to Robert Cahn; The Birth of the National Park Service; The Founding Years, 1913-33; Howe Brothers, Salt Lake City, Utah; 1985.
^ 9.09.19.29.39.49.59.6National Park Service, 2008 Director's Report; National Park Service, U.S. Department of the Interior; Washington, D.C.; 2009
參考文獻
Albright, Horace M. (as told to Robert Cahn). The Birth of the National Park Service. Salt Lake City: Howe Brothers, 1985.
Albright, Horace M, and Marian Albright Schenck. Creating the National Park Service: The Missing Years. Norman: University of Oklahoma Press, 1999.
Dilsaver, Lary M., ed. America's National Park System: The Critical Documents. Lanham, MD: Rowman & Littlefield, 1994.
Everhardt, William C. The National Park Service. New York: Praeger, 1972.
Foresta, Ronald A. America's National Parks and Their Keepers. Washington: Resources for the Future, 1985.
Garrison, Lemuel A;. The Making of a Ranger. Salt Lake City: Howe Brothers, 1983.
Gartner, Bob; Exploring Careers in the National Parks. New York: The Rosen Publishing Group, Inc. 1993
Hartzog, George B. Jr; Battling for the National Parks; Moyer Bell Limited; Mt. Kisco, New York; 1988
Ise, John. Our National Park Policy: A Critical History. Baltimore: Johns Hopkins Press, 1961.
Lee, Ronald F.; Family Tree of the National Park System; Eastern National Parks, Philadelphia, Pennsylvania, 1972
Mackintosh, Barry. The National Parks: Shaping the System. Washington: National Park Service, 1991.
National Parks for the 21st Century; The Vail Agenda; The National Park Foundation, 1991
National Park Service Almanac, Edited and Compiled by Ben Moffett and Vickie Carson: Rocky Mountain Region, National Park Service, 1991, revised 2006
The National Parks: Shaping The System; National Park Service, Washington D.C. 1991.
Rettie, Dwight F.; Our National Park System; University of Illinois Press; Urbana, Illinois; 1995
Ridenour, James M. The National Parks Compromised: Pork Barrel Politics and America's Treasures. Merrillville, IN: ICS Books, 1994.
Rothman, Hal K. Preserving Different Pasts: The American National Monuments. Urbana: University of Illinois Press, 1989.
Runte, Alfred. National Parks, the American Experience, Lincoln, Nebraska: University of Nebraska Press, 1987.
Sellars, Richard West. Preserving Nature in the National Parks: A History. New Haven: Yale University Press, 1997.
Shankland, Robert; Steve Mather of the National Parks; Alfred A. Knopf, New York; 1970
Sontag, William H. National Park Service: The First 75 Years. Philadelphia: Eastern National Park & Monument Assn., 1991.
Sutter, Paul. 2002. Driven Wild: How the Fight against Automobiles Launched the Modern Wilderness Movement. Seattle: University of Washington press. ISBN 0-295-98219-5.
Swain, Donald. Wilderness Defender: Horace M. Albright and Conservation. Chicago: University of Chicago Press, 1970.
Udall, Stewart L., The Quiet Crisis. New York: Holt, Rinehart & Winston, 1963.
Wirth, Conrad L. Parks, Politics, and the People. Norman, Oklahoma: University of Oklahoma Press, 1980.