1.
|
[Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey, [1996]
I 19.76: 96-734 |
|
2.
|
[Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor, 1994?]
I 19.76: 94-189 |
|
3.
|
Portland, Or. : U.S. Dept. of the Interior, U.S. Geological Survey ; [Lakewood, Colo. : U.S. Geological Survey Information Services, distributor], 1996.
I 19.76: 95-414 |
|
4.
|
Denver, CO : U.S. Dept. of the Interior, U.S. Geological Survey, 1994.
I 19.76: 95-673 |
|
5.
|
Denver, CO : U.S. Dept. of the Interior, U.S. Geological Survey : [Books and Open-File Reports Section, distributor], 1993.
I 19.76: 90-506 |
|
6.
|
[Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey, 1997.
I 19.76: 97-516 |
|
7.
|
[Menlo Park, Calif.] : U.S. Dept. of the Interior, U.S. Geological Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor, 1994]
I 19.76: 94-12 |
|