The railroad that never was : Vanderbilt, Morgan, and the South Pennsylvania Railroad
Railroads of Pennsylvania : your guide to Pennsylvania's historic trains and railway sites
Failure rates and data driven policies for vehicle safety inspections in Pennsylvania
Fueling the Gilded Age : railroads, miners, and disorder in Pennsylvania coal country
The Ma & Pa : a history of the Maryland & Pennsylvania Railroad
Grove City, Pennsylvania, ADAP Request No. 71-1-7-42-0035
Evaluation Report: Driver Experience with the Enhanced Object Detection System for Transit Buses
Stulta est clementia, cum tot ubique vatibus occurras, periturae parcere chartae. Juv
Ships for the seven seas : Philadelphia shipbuilding in the age of industrial capitalism
Commuter Railroad Service Improvements for a Metropolitan Area - Sepact I
City of Philadelphia Airport High Speed Rail Line
Conquering Gotham : a gilded age epic ; the construction of Penn Station and its tunnels
Greater Pittsburgh International Airport. Book II. Appendix B. Appendix C (Part 1)
Legislative Route 346, Section 6 (Traffic Route 45), Huntingdon County, Pennsylvania
Reading Municipal Airport, Reading, Pennsylvania
Greater Pittsburgh International Airport, Pittsburgh, Pennsylvania
Erie Bayfront Intermodal Integrator Study
Attitudes, Perceptions, and Constraints on Travel
Transportation Innovation and Changing Spatial Patterns: Pittsburgh, 1850-1910
Pennsylvania. Airport Project at Shamokin. Northumberland County
Center City Transportation Project - Pittsburgh
Defense Use of Certain Federal Property: Philadelphia Area, Navy
Status Report: Mass Transportation and Highway Planning
Historic Resource Study - Allegheny Portage Railroad National Historic Site, Pennsylvania