1.
|
Urbana, Ill. : Illinois State Geological Survey, 1979.
|
2.
|
Urbana, Ill. : Illinois Institute of Natural Resources, State Geological Survey Division, 1980.
|
3.
|
Urbana : Illinois State Geological Survey, 1934.
|
4.
|
Urbana, Illinois State Geological Survey, 1959.
|
5.
|
|
6.
|
Champaign, Ill. : Illinois State Geological Survey : Illinois State Water Survey, [1989]
|
7.
|
Champaign, Ill. : Illinois State Geological Survey, 1993.
TN872.I3 I44 no.141 |
Map It |
|
8.
|
[Denver, CO] : U.S. Dept. of the Interior, Geological Survey : [Books and Open-File Reports Section [distributor, 1991]
I 19.76: 91-621-A |
|
9.
|
[Denver, CO] : U.S. Dept. of the Interior, Geological Survey : [Books and Open-File Reports Section distributor, 1991]
I 19.76: 91-387-A |
|
10.
|
[Denver, CO] : U.S. Dept. of the Interior, Geological Survey : [Books and Open-File Reports Section, distributor], 1991.
I 19.76: 91-637-A |
|