The Online Books Page

Books by United States. Dept. of the Interior. Southwestern Pennsylvania Heritage Preservation Commission:

Books in the extended shelves:

• United States. Dept. of the Interior. Southwestern Pennsylvania Heritage Preservation Commission: America's Industrial Heritage Project : seldom seen mine. (U.S. Dept. of the Interior, Southwestern Pennsylvania Heritage Commission, National Park Service, 1993) (page images at HathiTrust)
• United States. Dept. of the Interior. Southwestern Pennsylvania Heritage Preservation Commission: Comprehensive management plan for the Southwestern Pennsylvania Heritage Preservation Commission : Bedford, Blair, Cambria, Fayette, Fulton, Huntingdon, Indiana, Somerset, and Westmoreland Counties, Pennsylvania. (U.S. Dept. of the Interior, [National Park Service, Denver Service Center, Southwestern Pennsylvania Heritage Preservation Commission, 1992), also by United States. National Park Service. Denver Service Center (page images at HathiTrust)
• United States. Dept. of the Interior. Southwestern Pennsylvania Heritage Preservation Commission: The National Road : Maryland, Pennsylvania, West Virginia, Ohio, Indiana, Illinois. (U.S. Dept. of the Interior, Southwestern Pennsylvania Heritage Preservation Commission, National Park Service, 1994) (page images at HathiTrust)
• United States. Dept. of the Interior. Southwestern Pennsylvania Heritage Preservation Commission: The people of the Pennsy (U.S. Dept. of the Interior, National Park Service, 1993), also by United States National Park Service and Altoona Railroaders Memorial Museum (page images at HathiTrust)
• United States. Dept. of the Interior. Southwestern Pennsylvania Heritage Preservation Commission: Reconnaissance survey : Juniata River corridor : America's Industrial Heritage Project, southwestern Pennsylvania (The Service, 1991), also by United States National Park Service (page images at HathiTrust)
• United States. Dept. of the Interior. Southwestern Pennsylvania Heritage Preservation Commission: Recreation study-- Juniata River corridor : America's Industrial Heritage Project, Pennsylvania (U.S. Dept. of the Interior, National Park Service], 1991), also by United States National Park Service and America's Industrial Heritage Project (page images at HathiTrust)
• United States. Dept. of the Interior. Southwestern Pennsylvania Heritage Preservation Commission: Study of alternatives : East Broad Top Railroad National Historic Landmark : draft (The Service, 1990), also by United States National Park Service and America's Industrial Heritage Project (page images at HathiTrust)

Find more by United States. Dept. of the Interior. Southwestern Pennsylvania Heritage Preservation Commission at your library, or elsewhere.