Jensen, Emil C.
Sewage collection and treatment works in the state of Washington by Emil C. Jensen and Joshua H. Vogel - Washington Bureau of Governmental Research and Services 1949 - 105p.
Sewage disposal
Sewerage --Washington (State)
X81x797 J453
Sewage collection and treatment works in the state of Washington by Emil C. Jensen and Joshua H. Vogel - Washington Bureau of Governmental Research and Services 1949 - 105p.
Sewage disposal
Sewerage --Washington (State)
X81x797 J453