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• The life of inland waters an elementary text book of fresh-water biology for students
  Auteur(s): Needham, James G. ,  Lloyd, John Thomas
• The life of inland waters an elementary text book of fresh-water biology for American students
  Auteur(s): Needham, James G. ,  Lloyd, John Thomas
• The life of inland waters an elementary text book of fresh water biology for American students
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• An index to the chemical action of microorganisms on the non-nitrogenous organic compounds
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  Auteur(s): Loeb, Leo