1.
|
[Menlo Park, CA] : U.S. Dept. of the Interior, Geological Survey, [1990]
I 19.76: 90-14 |
|
2.
|
[Menlo Park, CA] : U.S. Dept. of the Interior, Geological Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor, 1991]
I 19.76: 91-146 |
|
3.
|
[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 1995.
I 19.76: 95-54 |
|
4.
|
[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey ; [Washington, D.C.] : U.S. G.P.O. ; Denver, CO : U.S.G.S. Information Services [distributor], 2004.
|
5.
|
Menlo Park, CA : U.S. Dept. of the Interior, U.S. Geological Survey, 1998.
I 19.76: 98-788 |
|
6.
|
Washington, DC : U.S. GPO ; Denver, CO : USGS Information Services [distributor], 2001.
|