Author
United States. National Park Service
10
Kenney, Nathaniel T.
2
National Constitution Center (U.S.)
2
National Geographic Society (U.S.)
2
Abell, Sam
1
American Institute of Planners
1
American Planning and Civic Association
1
American Samoa Visitors Bureau
1
American planning and civic association
1
American society of planning officials
1
Burns, Ned J., 1899-
1
Cupp, David
1
Delaware & Lehigh National Heritage Corridor Commission
1
Delaware and Lehigh Navigation Canal National Heritage Corridor Commission
1
Eliot, John L.
1
Findley, Rowe
1
Gallagher, Gary W.
1
Greene, A. Wilson
1
Grinder, Alison L.
1
Harvey, David Alan
1
Hurst, John Shirley
1
Hussey, John A.
1
Independence National Historical Park (Philadelphia, Pa.)
1
James, Harlean, 1877-1969
1
Joint conference on planning
1
Machlis, Gary E.
1
McCoy, E. Sue
1
McCrellis, James Bradford, 1839-1901
1
Muir, John, 1838-1914
1
National Parks Association (U.S.)
1
Old Dominion Foundation
1
United States. Army. Office of the Judge Advocate General
1
United States. National Park Service. Denver Service Center
1
United States. National Park Service. Region One
1
Webster, Nancy V.
1
Yard, Robert Sterling, 1861-
1