Author
Baist, G. Wm. 1859-1927
2
Philadelphia Transportation Company
2
Smith, Elvino V., 1870-1932
2
ADC (Firm)
1
Anastasia, George
1
Cutler, William W.
1
Franklin Survey Company,
1
Friedman, T. G.
1
Gillette, Howard, Jr., 1942-
1
Korean and American Friendship Society (Philadelphia, Pa.)
1
Playground Maps Inc
1
Simulation Systems Inc
1
Southeastern Pennsylvania Transportation Authority
1
Southeastern Pennsylvania Transportation Authority. Service Planning Department
1