1.
|
[Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey, [1998]
I 19.76: 98-35 |
|
2.
|
[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [1995]
I 19.76: 95-71 |
|
3.
|
Washington : U.S. G.P.O., 1995.
|
4.
|
Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2002.
|
5.
|
[Denver, Colo.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2001.
I 19.76: 94-260 G |
|
6.
|
[Denver, CO] : U.S. Dept. of the Interior, U.S. Geological Survey, [1998]
I 19.76: 98-617 |
|
7.
|
Denver, Colo. : U.S. Dept. of the Interior, Geological Survey ; Alexandria, VA : For sale by the Branch of Distribution, 1986.
|