1.
|
[Reston, Va.?] : The Survey ; [Denver, Colo. : Books and Open-File Report Section, distributor], 1992.
I 19.76: 92-549 |
|
2.
|
[Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 1998.
I 19.76: 98-804 |
|
3.
|
[Reston, Va.?] : The Survey ; [Denver, Colo. : Books and Open-File Section, distributor], 1992.
I 19.76: 92-548 |
|
4.
|
Reston, Va. : The Survey ; [Denver, Colo. : Books and Open-File Reports Section], 1994.
I 19.76: 94-613 |
|
5.
|
[Denver, Colo.?] : The Survey : [Books and Open-File Reports Section] 1990.
I 19.76: 90-55 |
|
6.
|
[Reston, Va.] : The Survey, 1993.
I 19.76: 93-277 |
|
7.
|
[Reston, Va.?] : The Survey, 1996.
I 19.76: 96-287 |
|
8.
|
[Reston, Va.?] : The Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor], 1993.
I 19.76: 93-564 |
|
9.
|
[Menlo Park, Calif.] : U.S. Geological Survey, 1990.
I 19.76: 90-664 |
|
10.
|
[Reston, Va.?] : U.S. Geological Survey, 1999.
I 19.76: 99-440 |
|