1.
|
|
2.
|
Washington, D.C. : National Academy Press, 2001.
|
3.
|
[Washington, D.C.] : U.S. Dept. of Agriculture, Forest Service, Minerals and Geology Management, Watershed, Fish, Wildlife, Air, and Rare Plants, Engineering, [2007]
|
4.
|
Reston, Va. : U.S. Geological Survey, 2005.
|
5.
|
Reston, Va. : U.S. Geological Survey, 2004.
|
6.
|
Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by U.S. Geological Survey, Information Services, 2004.
|
7.
|
Champaign, IL : Illinois State Geological Survey, 1997.
|
8.
|
St. Petersburg, Fla. : U.S. Geological Survey, Center for Coastal Geology, [1994]
I 19.76: 94-0276 |
|
9.
|
Northborough, Mass. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : Branch of Information Services [distributor], 2002.
I 19.76: 02-235 |
|
10.
|
[Denver, CO] : U.S. Dept, of the Interior, Geological Survey, 1990.
I 19.76: 90-292 |
|