00675nam 2200157z- 450 9910712132603321(CKB)5470000002490788(EXLCZ)99547000000249078820230509c1971uuuu -u- -engQuality of surface waters of the United States, 1966. Parts 7-8, Lower Mississippi River basin and western Gulf of Mexico basinsUnited States Department of the Interior, Geological SurveyWashington, D.CBOOK9910712132603321Quality of surface waters of the United States, 1966. Parts 7-8, Lower Mississippi River basin and western Gulf of Mexico basins3313089UNINA