1.
|
Denver, Colo. : U.S. Geological Survey, [1994]
I 19.76: 94-283 |
|
2.
|
[Denver, Colo.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 1995.
I 19.76: 95-550 |
|
3.
|
[Denver, CO?] : U.S. Geological Survey, 1995.
I 19.76: 95-94 |
|
4.
|
Reston, Va. : U.S. Geological Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor], 1991.
I 19.76: 91-389 |
|
5.
|
[Denver, CO] : The Survey : [Books and Open-File Reports Section, distributor], 1991.
I 19.76: 91-135 |
|
6.
|
[Denver, Colo.] : The Survey : [Books and Open-File Reports Section, distributor], 1992.
I 19.76: 92-341 |
|
7.
|
Denver, Colo. : The Survey : [Books and Open-File Reports Section, distributor], 1992.
I 19.76: 92-16 |
|
8.
|
[Denver, Colo.] : The Survey : [Books and Open-File Reports Section, distributor], 1992.
I 19.76: 92-7 |
|
9.
|
Reston, Va. : U.S. Geological Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor], 1991.
I 19.76: 91-627 |
|
10.
|
[Denver, Colo.] : The Survey : [For sale by the Open-File Reports Section], 1994.
I 19.76: 94-175 |
|