|
1.
|
Washington : U.S. G.P.O. ; Denver, CO : USGS Information Services [distributor] 1999.
|
|
2.
|
Washington : U.S. G.P.O., 1981.
GB1199.7.O7 S24 1981 |
Map It |
|
|
3.
|
[Menlo Park, CA?] : U.S. Dept. of the Interior, U.S. Geological Survey ; [Denver, CO : Information Services, distributor], 1996.
I 19.76: 96-663 |
|
