1.
|
[Denver, CO] : U.S. Geological Survey, [1990]
I 19.76: 90-661 |
|
2.
|
[Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey : [Books and Open-File Reports Section, distributor], 1992.
I 19.76: 92-599 |
|
3.
|
[Denver, Colo.?] : U.S. Dept. of the Interior, U.S. Geological Survey : [Open-File Reports Section, distributor], 1994.
I 19.76: 94-289 |
|
4.
|
Amsterdam ; Boston : Elsevier Academic Press, c2006.
|
5.
|
Denver, CO : U.S. Dept. of the Interior, Geological Survey : [Books and Open-File Reports Section, distributor], 1992.
I 19.76: 92-375-A |
|
6.
|
[Denver, Colo.?] : U.S. Dept. of the Interior, U.S. Geological Survey ; [Denver, Colo. : Open-File Reports Section, distributor], 1994.
I 19.76: 94-295 |
|