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- catalog alternative "Trickling filter efficiencies.".
- catalog contributor b9236585.
- catalog contributor b9236586.
- catalog contributor b9236587.
- catalog created "1936]".
- catalog date "1936".
- catalog date "1936]".
- catalog dateCopyrighted "1936]".
- catalog description "Thesis (PH. D.)--University of Minnesota, 1937.".
- catalog extent "p. 888-903.".
- catalog issued "1936".
- catalog issued "1936]".
- catalog language "eng".
- catalog publisher "[New York,".
- catalog subject "628.35".
- catalog subject "Filters and filtration.".
- catalog subject "Sewage Purification.".
- catalog subject "TD753 .S3 1937".
- catalog title "The improvement of trickling filter efficiencies: experimental studies of aeration and application rates ... by George Mason Savage ...".
- catalog title "Trickling filter efficiencies.".
- catalog type "text".