1.
|
[Menlo Park, CA] : U.S. Geological Survey, [1994]
I 19.76: 93-553 |
|
2.
|
Tucson, Ariz. : U.S. Geological Survey ; Denver, CO : Branch of Information Services [distributor], 1997.
GB705.C6 R68 1997 |
|
3.
|
[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [1995]
I 19.76: 95-57 |
|
4.
|
[Reston, Va.] : U.S. Geological Survey ; [Denver, Colo. : Open-File Reports Section, distributor, 1994]
I 19.76: 93-517 |
|
5.
|
[Reston, Va.?] : The Survey ; [Denver, Colo. : Books and Open-File Section, distributor], 1994.
I 19.76: 94-563 |
|
6.
|
[Reston, Va.?] : The Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor], 1994.
I 19.76: 94-564 |
|