- Thomas, George E.Buildings of Pennsylvania Philadelphia and Eastern Pennsylvania, Society of Architectural Historians, University of Virginia Press, Charlottesville, 2010,
p. 337
Links:
View citation information
Client/Project Name: Union Canal Tunnel
Architects Referenced:
Guilford, Simeon;
Ives, John B.
- National Register. (National Register Information System)
Links:
View citation information
Client/Project Name: Union Canal Tunnel
- Pennsylvania Cultural Resources Geographic Information System, a cooperative venture of the Pennsylvania Historical & Museum Commission and the Pennsylvania Department of Transportation.
Links:
View citation information
Client/Project Name: Union Canal Tunnel
- Pennsylvania Historical and Museum Commission Cultural Resources Database
Links:
View citation information
Client/Project Name: Union Canal Tunnel
- National Register Information System database (imported May 8, 2001)
- Schodek, Daniel L. Landmarks in American Civil Engineering. Cambridge, MA: MIT Press, 1987, p. 163-165.
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