1.
|
[Menlo Park, CA] : U.S. Geological Survey, 1990.
I 19.76: 90-61 |
|
2.
|
[Menlo Park, Calif.] : U.S. Dept. of the Interior, Geological Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor], 1991.
I 19.76: 91-3 |
|
3.
|
[Reston, Va.?] : Dept. of the Interior, U.S. Geological Survey ; Denver, CO : Free on application to the Books and Open-File Reports Section, 1990.
|
4.
|
[Reston, Va.] : Dept. of the Interior, U.S. Geological Survey, [1995]
I 19.76: 95-695 |
|
5.
|
Washington : U.S. G.P.O. ; Denver, CO : For sale by the U.S. Geological Survey, Information Services, 1998.
|
6.
|
[Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey ; [Denver, Colo. : Open-File Reports Section, distributor], 1993.
I 19.76: 93-622 |
|
7.
|
[Reston, Va.] : Dept. of the Interior, U.S. Geological Survey [1995]
I 19.76: 95-630 |
|
8.
|
Washington : U.S. G.P.O. ; Denver, CO : U.S. Geological Survey, Information Services [distributor], 1994.
|