About OLIVER B G
About Canada Centre for Inland Waters
About THURMAN E M
About U.S. Geological Survey, Colorado
About MALCOLM R L
About U.S. Geological Survey, Colorado
About Geochimica et Cosmochimica Acta
About natural water
About carboxyl group
About Geochemistry of hydrosphere and biosphere
About 有色
About 天然水
About 酸性度
About 腐植物質