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- 85184920 contributor B5012135.
- 85184920 created "1977.".
- 85184920 date "1977".
- 85184920 date "1977.".
- 85184920 dateCopyrighted "1977.".
- 85184920 description "Bibliography: p. 71-77.".
- 85184920 extent "iv, 97 p. :".
- 85184920 isPartOf "Research publication (Ontario. Wastewater Treatment Section) ; W62.".
- 85184920 isPartOf "Research publication ; W62".
- 85184920 issued "1977".
- 85184920 issued "1977.".
- 85184920 language "eng".
- 85184920 publisher "[Toronto] : Wastewater Treatment Section, Pollution Control Branch, Ontario Ministry of the Environment,".
- 85184920 subject "Nitrification.".
- 85184920 subject "Sewage Purification Activated sludge process.".
- 85184920 subject "Sewage Purification Nitrogen removal.".
- 85184920 subject "TD756 .S54 1977".
- 85184920 title "Nitrification in activated sludge plants : guidelines on some operation and design aspects / by A.G. Smith.".
- 85184920 type "text".