1.
|
[Denver, Colo.?] : The Survey : [Books and Open-File Reports Section, distributor], 1990.
I 19.76: 90-26 |
|
2.
|
[Menlo Park, Calif.] : U.S. Geological Survey, 1990.
I 19.76: 90-644 |
|
3.
|
[Menlo Park, Calif.] : U.S. Geological Survey, 1990.
I 19.76: 90-643 |
|
4.
|
[Menlo Park, Calif.] : U.S. Geological Survey, 1990.
I 19.76: 90-541 |
|
5.
|
[Menlo Park, CA] : U.S. Geological Survey, 1993.
I 19.76: 93-566 |
|
6.
|
[Reston, Va.?] : The Survey, 1995.
I 19.76: 95-48 |
|
7.
|
[Reston, Va.?] : The Survey, 1997.
I 19.76: 97-493 |
|
8.
|
[Reston, Va.?] : The Survey, 1997.
I 19.76: 97-488 |
|
9.
|
[Reston, Va.?] : The Survey, 1997.
I 19.76: 95-534 |
|
10.
|
[Reston, Va.] : The Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor], 1991.
I 19.76: 91-354 |
|