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- 68062368 contributor B1871901.
- 68062368 created "1968]".
- 68062368 date "1968".
- 68062368 date "1968]".
- 68062368 dateCopyrighted "1968]".
- 68062368 extent "20 p.".
- 68062368 issued "1968".
- 68062368 issued "1968]".
- 68062368 language "eng".
- 68062368 publisher "[Washington,".
- 68062368 subject "628/.53".
- 68062368 subject "Air Pollution.".
- 68062368 subject "TD883 .U46".
- 68062368 title "Clearing the air; Bureau of Mines programs in atmospheric pollution abatement.".
- 68062368 type "text".