1.
|
[Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by U.S. Geological Survey, Information Services, [1999]
|
2.
|
Denver, CO : U.S. Geological Survey, 2001.
|
3.
|
Denver, CO : U.S. Dept. of the Interior, U.S. Geological Survey, 2006.
|
4.
|
[Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey : [Books and Open-File Reports Section, distributor, 1993]
I 19.76: 92-713 |
|
5.
|
[Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey : [Books and Open-File Reports Section, distributor, 1991]
I 19.76: 91-447 |
|
6.
|
[Denver, Colo.?] : U.S. Dept. of the Interior, U.S. Geological Survey : [Books and Open-File Reports Section, distributor], 1994.
I 19.76: 94-23 |
|
7.
|
[Denver, Colo.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 1999.
I 19.76: 99-338 |
|
8.
|
Denver, Colo. : U.S. Geological Survey, 1999.
|