1.
|
[Menlo Park, CA] : U.S. Geological Survey ; [Denver, Colo. : U.S. Geological Survey, 1991]
I 19.76: 90-35 |
|
2.
|
[Menlo Park, Calif.?] : U.S. Dept. of the Interior, U.S. Geological Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor], 1994.
I 19.76: 94-170-A |
|
3.
|
[Menlo Park, CA] : Dept. of the Interior, U.S. Geological Survey, [1990]
I 19.76: 90-422 |
|
4.
|
Menlo Park, Calif. : U.S. Dept. of the Interior, U.S. Geological Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor], 1992.
I 19.76: 92-364-A |
|
5.
|
Denver, CO : Dept. of the Interior, U.S. Geological Survey : Books and Open-File Reports Section, distributor, 1992.
I 19.76: 91-349-A |
|
6.
|
Bloomington, Ind. : Dept. of Natural Resources, Geological Survey, 1988.
|