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- 72600781 contributor B2194313.
- 72600781 contributor B2194314.
- 72600781 created "1970.".
- 72600781 date "1970".
- 72600781 date "1970.".
- 72600781 dateCopyrighted "1970.".
- 72600781 description "Includes bibliographical references.".
- 72600781 extent "xi, 95 p.".
- 72600781 isPartOf "Water pollution control research series".
- 72600781 issued "1970".
- 72600781 issued "1970.".
- 72600781 language "eng".
- 72600781 publisher "Washington [U.S. Environmental Protection Agency]; for sale by the Supt. of Docs., U.S. Govt. Print. Off.,".
- 72600781 subject "628/.354".
- 72600781 subject "Sewage Purification Activated sludge process.".
- 72600781 subject "TD756 .M54".
- 72600781 subject "Water Phosphorus content.".
- 72600781 title "Phosphorus removal by an activated sludge plant.".
- 72600781 type "text".