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1
by Boyle, Michael
Harrisburg, Pa. : Pennsylvania Department of Transportation, Office of Planning and Research, 2006

Government Document Book
2
by Mauer, Dean
[Harrisburg, Pa.] : [Springfield, VA : Pennsylvania Department of Transportation, Bureau of Construction and Materials ; Available through the National Technical Information Service], 1993

Government Document Book
3
by Anderson, D. A. (David A.), 1936-
University Park, Pa. : Pennsylvania State University, Pennsylvania Transportation Institute, 2004

Government Document Book
4
by Anderson, D. A. (David A.), 1936-
University Park, Pa. : Pennsylvania State University, Pennsylvania Transportation Institute, 2004

Government Document Book
5
by Boyle, Michael
Harrisburg, Pa. : Pennsylvania Department of Transportation, Office of Planning and Research, 2005

Government Document Book
6
Harrisburg, Pa. : Pennsylvania Joint State Government Commission, 2007

Book
7
by Sheftick, Daniel E.
[Harrisburg] : [Springfield, VA : Pennsylvania Dept. of Transportation, Bureau of Bridge and Roadway Technology ; Available through the National Technical Information Service, 1991

Government Document Book
8
by Reed, Andrew B.
Harrisburg, Pa. : Pennsylvania Department of Transportation, 1999

Government Document Book
9
by Lucas, Marcella Jo
Harrisburg, Pa. : Pennsylvania Department of Transportation, 1998

Government Document Book
10
by McCormack, Matthew T.
[Harrisburg, PA] : [Springfield, VA : Pennsylvania Dept. of Transportation, Bureau of Bridge and Roadway Technology ; Available from the National Technical Information Service, 1991

Government Document Book
11
by Boyle, Michael
Harrisburg, Pa. : Pennsylvania Department of Transportation, Office of Planning and Research, 2005

Government Document Book
12
by Sukley, Robin
[Harrisburg, Pa.] : Pennsylvania Department of Transportation, 2005

Government Document Book
13
by Knoll, Douglas E.
Harrisburg, PA : Pennsylvania Dept. of Transportation, 1999

Government Document Book
14
University Park, Pa. : Pennsylvania State University, Pennsylvania Transportation Institute, 2004

Book
15
by Ramirez, Timothy L.
[Harrisburg, Pa.] : [Springfield, VA : Pennsylvania Department of Transportation, Bureau of Bridge and Roadway Technology ; Available through the National Technical Information Service, 1992

Book
16
by Shah, Janki K.
[Place of publication not identified] : [publisher not identified], 2004

Thesis Book
17
by Knoll, Douglas E.
[Harrisburg] : [Pennsylvania Dept. of Transportation], 1999

Book
18
Harrisburg, Pa. : Pennsylvania Joint State Government Commission, 2007

Government Document Book
19
Harrisburg, Pa. : Pennsylvania Joint State Government Commission, 2007

Government Document Book