1.
|
[Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey], 1996.
I 19.76: 96-66 |
|
2.
|
Reston, VA : U.S. Dept. of the Interior, U.S. Geological Survey, [1996]
I 19.76: 96-529 |
|
3.
|
[Denver, CO] : U.S. Geological Survey, [1997]
I 19.76: 97-445 |
|
4.
|
Washington, D.C. : U.S. G.P.O. ; Denver CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1991.
|
5.
|
Washington, D.C. : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey, Map Distribution, 1994.
|
6.
|
Washington : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey, Information Services, 1997.
|
7.
|
Denver, CO : U.S. Dept. of the Interior, U.S. Geological Survey, 1999.
I 19.76: 99-381 |
|
8.
|
[Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey : [Open-File Reports Section, distributor, 1996]
I 19.76: 95-841 |
|
9.
|
[Denver, Colo.] : U.S. Dept. of the Interior, Geological Survey : [Books and Open-File Reports Section, distributor], 1992.
I 19.76: 92-718 |
|
10.
|
[Denver, C0] : Dept. of the Interior, U.S. Geological Survey, [1990]
I 19.76: 90-455 |
|