- Электронная книгаBessemer and Lake Erie RailroadKenneth C. Springirth
- Электронная книгаNorthwestern Pennsylvania RailroadsKenneth C. Springirth
- Электронная книгаPittsburgh Streamlined TrolleysKenneth C. Springirth
- Электронная книгаSuburban Philadelphia TrolleysKenneth C. Springirth
- Электронная книгаEast Broad Top RailroadKenneth C. Springirth
- Электронная книгаJohnstown Trolleys and InclineKenneth C. Springirth
- Электронная книгаArcade and Attica RailroadKenneth C. Springirth
- Электронная книгаSoutheastern Pennsylvania TrolleysKenneth C. Springirth
- Электронная книгаGreater Erie TrolleysKenneth C. Springirth