Chemical analyses of surface water in Illinois, 1958–74—Volume II, Illinois River basin and Mississippi River tributaries north of Illinois River basin
Keyword(s):
1978 ◽
Keyword(s):
1979 ◽
Keyword(s):
Surface-water-quality assessment of the upper Illinois River Basin in Illinois, Indiana, and Wisconsin; results of investigations through April 1992
1997 ◽
1998 ◽
1995 ◽