Author
Bureau of Municipal Research (Philadelphia, Pa.)
1
Durrenberger, Joseph Austin, 1898-
1
Marnell, Blake,
1
Marnell, Daniel J.,
1
Pennsylvania Economy League
1
Pennsylvania Fish & Boat Commission
1
Pennsylvania. Department of General Services
1
Pennsylvania. Department of Highways
1
Pennsylvania. Department of Transportation
1
Pennsylvania. Department of Transportation. Cartographic Information Division
1
Schuylkill Expressway Improvement Project
1
Shank, William H.
1
United States. Bureau of Public Roads
1