Author
Alewitz, Sam, 1918-
1
Cooke, Morris Llewellyn, 1872-1960
1
Corporation of the City of Philadelphia
1
Philadelphia (Pa.) Committee on House Drainage, Ventilation, etc
1
Philadelphia (Pa.) Dept. of Public Works
1
Philadelphia (Pa.). Councils. Committee on Cleansing
1
Philadelphia (Pa.). Councils. Sanitary Committee
1