Author
Bureau of Municipal Research (Philadelphia, Pa.)
2
City History Society of Philadelphia
1
Friedman, T. G.
1
H.M. Gousha Company,
1
MacNamara, Charles H.
1
Pennsylvania
1
Pennsylvania Economy League
1
Philadelphia (Pa.). Plans & Registry Division
1
Philadelphia City Planning Commission
1
Playground Maps Inc
1
Powers, Frederick Perry, -1927
1