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- 70614683 contributor B2004065.
- 70614683 contributor B2004066.
- 70614683 created "1971.".
- 70614683 date "1971".
- 70614683 date "1971.".
- 70614683 dateCopyrighted "1971.".
- 70614683 description "Includes bibliographical references.".
- 70614683 extent "ix, 125 p.".
- 70614683 isPartOf "Water pollution control research series".
- 70614683 issued "1971".
- 70614683 issued "1971.".
- 70614683 language "eng".
- 70614683 publisher "Washington [Environmental Protection Agency, Water Quality Office]; for sale by the Supt. of Docs., U. S. Govt. Print. Off.,".
- 70614683 subject "628/.354".
- 70614683 subject "Sewage Purification Activated sludge process.".
- 70614683 subject "TD756 .D35".
- 70614683 title "Combined treatment of domestic and industrial wastes by activated sludge. [Prepared] for the Water Quality Office, Environmental Protection Agency.".
- 70614683 type "text".