1. Preliminary report with reference to extension of the new Pittsburgh Water Works Author(s): Roberts, W. Milnor (William Milnor), 1810-1881 author Publication: Pittsburgh : Errett, Anderson & Co., 1869 Subject(s): Water SupplySanitary EngineeringPennsylvaniaPittsburgh Water Works.
2. Report on the new water works Author(s): Roberts, W. Milnor (William Milnor), 1810-1881 author Publication: [Pittsburgh] : [publisher not identified], [1874] Subject(s): Water SupplySanitary EngineeringPennsylvania
