1.
|
[Washington, D.C.?] : Dept. of the Interior, [1988]
|
2.
|
[Reston, Va.] : Dept. of the Interior, 1987.
|
3.
|
[Reston, Va.?] : Dept. of the Interior, 1986.
|
4.
|
[Reston, Va.?] : Dept. of the Interior, [1988]
|
5.
|
Carson City, Nev. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : Books and Open-File Reports Section [distributor,
I 19.76: |
|
6.
|
Washington : U.S. G.P.O., 1948-2004.
|
7.
|
[Reston, Va.?] : U.S. Dept. of the Interior, Geological Survey, 1986.
|
8.
|
[Reston, Va.?] : Dept. of the Interior, 1987.
|
9.
|
[Reston, Va.?] : Dept. of the Interior, 1987.
|
10.
|
[Reston, Va.?] : Dept. of the Interior, 1987.
|