1.
|
[Denver, Colo.?] : The Survey : [Books and Open-File Reports Section] 1990.
I 19.76: 90-55 |
|
2.
|
[Menlo Park, Calif.] : U.S. Geological Survey, 1990.
I 19.76: 90-664 |
|
3.
|
[Reston, Va.?] : The Survey, 1996.
I 19.76: 96-287 |
|
4.
|
[Menlo Park, Calif.] : The Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor], 1991.
I 19.76: 91-555 |
|
5.
|
[Reston, Va.] : The Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor], 1992.
I 19.76: 92-702 |
|
6.
|
[Reston, VA : The Survey ; Denver, CO : For sale by Information Services], 1995.
I 19.76: 95-16 |
|
7.
|
[Menlo Park, Calif.] : U.S. Geological Survey, 1991.
I 19.76: 91-106 |
|
8.
|
[Menlo Park, Calif.] : U.S. Geological Survey, 1990.
I 19.76: 90-642 |
|
9.
|
[Menlo Park, Calif.?] : The Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor], 1992.
I 19.76: 92-279 |
|
10.
|
[Menlo Park, Calif.] : The Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor], 1991.
I 19.76: 91-554 |
|