Media type: E-Article Title: The contribution of humic substances to the acidity of colored natural waters Contributor: Oliver, Barry G.; Thurman, Earl M.; Malcolm, Ronald L. imprint: Elsevier BV, 1983 Published in: Geochimica et Cosmochimica Acta Language: English DOI: 10.1016/0016-7037(83)90218-1 ISSN: 0016-7037 Origination: Footnote: