Description
Item Description:At head of title: The Pennsylvania State University, the Pennsylvania Transportation Institute, University Park ; Institute of State and Regional Affairs, Capitol Campus.
"432-69 PDT Substate regions (3488)."
Study sponsored by the Bureau of Advance Planning, Dept. of Transportation, Commonwealth of Pennsylvania.
Supported by Pennsylvania Dept. of Transportation and Federal Highway Administration.
In cooperation with the Institute of State and Regional Affairs.
Physical Description:vii, 255 pages in various pagings : diagrams, tables ; 28 cm.
Bibliography:References: pages 99-102.