1.
|
Denver, CO : U.S. Geological Survey : [Books and Open File Reports Section, distributor], 1990.
I 19.76: 90-227-A |
|
2.
|
[Denver, CO] : U.S. Dept. of the Interior, Geological Survey, 1990.
I 19.76: 90-68 |
|
3.
|
[Denver, Colo.] : U.S. Dept. of the Interior, Geological Survey : [Books and Open-File Reports Section, distributor], 1990.
I 19.76: 90-69 |
|
4.
|
Denver, CO : U.S. Dept. of the Interior, Geological Survey : Books and Open-File Reports Section, distributor], 1990.
I 19.76: 90-4 |
|
5.
|
Denver, CO : U.S. Dept. of the Interior, Geological Survey : [Books and Open-File Reports Section, distributor], 1990.
I 19.76: 90-5 |
|
6.
|
Denver, CO : U.S. Dept. of the Interior, Geological Survey : [Books and Open-File Reports Section, distributor], 1990.
I 19.76: 90-8 |
|
7.
|
Denver, CO : U.S. Dept. of the Interior, Geological Survey : [Books and Open-File Reports Section, distributor], 1990.
I 19.76: 90-22 |
|
8.
|
[Reston, VA : U.S. Geological Survey ; 1990]
I 19.76: 90-689 |
|
9.
|
[Denver, Colo.] : U.S. Dept. of the Interior, Geological Survey, 1990.
I 19.76: 90-682 |
|
10.
|
[Menlo Park, CA] : U.S. Dept. of the Interior, U.S. Geological Survey, 1990.
I 19.76: 90-681 |
|