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Showing 1 - 20 of 98 Results for subject:"Sewage -- Purification -- Biological treatment."
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by Gray, Albert C
Cincinnati, OH : U.S. Environmental Protection Agency, Municipal Environmental Research Laboratory : Center for Environmental Research Information [distributor], 1982
MicroformMicroform, BookBook
 
 
by Hyde, Henry C
Cincinnati, OH : U.S. Environmental Protection Agency, Municipal Environmental Research Laboratory, 1984
MicroformMicroform, BookBook
 
 
 
 
Boca Raton, Fla. : CRC Press, c1988
 
 
Cincinnati, Ohio : U.S. Environmental Protection Agency, Water Engineering Research Laboratory, 1986
MicroformMicroform, BookBook
 
 
by Hawkes, H. A. (Herbert Aubrey)
Oxford, New York, Pergamon Press; [distributed in the Western Hemisphere by Macmillan, New York] 1963
 
 
by Forster, C. F. (Christopher F.)
Cambridge [Cambridgeshire] ; New York : Cambridge University Press, 1985
 
 
by Jacksonville (Ark.)
Washington [Environmental Protection Agency, Water Quality Office]; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1971
 
 
 
Aboriginal and Torres Strait Islander Flags
Aboriginal, Torres Strait Islander and other First Nations people are advised that this catalogue contains names, recordings and images of deceased people and other content that may be culturally sensitive. Please also be aware that you may see certain words or descriptions in this catalogue which reflect the author’s attitude or that of the period in which the item was created and may now be considered offensive.