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- 71614323 contributor B2051039.
- 71614323 created "1971]".
- 71614323 date "1971".
- 71614323 date "1971]".
- 71614323 dateCopyrighted "1971]".
- 71614323 extent "24 p.".
- 71614323 issued "1971".
- 71614323 issued "1971]".
- 71614323 language "eng".
- 71614323 publisher "Washington; For sale by the Supt. of Docs., U.S. Govt. Print. Off.,".
- 71614323 subject "628/.3".
- 71614323 subject "Sewage Purification.".
- 71614323 subject "TD745 .U47 1971".
- 71614323 title "A primer on waste water treatment.".
- 71614323 type "text".