... Atrazine in surface waters of 11 states, 19 7 5-9 1. Atrazine in the Mississippi, Missouri, and Ohio Rivers, 19 7 5-9 1 - - - - - - . I I I 4 95 Ciba-Geigy, 19 92e Ciba-Geigy, 19 94a ... 53 11 10 6 d Ciba-Geigy, 19 92b Ciba-Geigy, 19 92c Ciba-Geigy, 19 92d 10 2 -* * I I I 3 Ciba-Geigv, 19 92a I Atrazine in the Mississippi River, near Baton Rouge-St. Atrazine in Chesapeake ... Atrazine in surface waters of Iowa, 19 7 5-9 3. d 4 4 18 Ciba-Geigy, 19 92f I Atrazine in surface waters of Illinois, 19 7 5-8 8. - Reviews of Environmental Processes and Effects of Pesticides...