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1Published 1978“...Dept. of the Interior, Geological Survey ;...”
Government Document Conference Proceeding Book -
2Published 1997“...Dept. of the Interior, Geological Survey :...”
Government Document Conference Proceeding Book -
3Published 1977“...Dept. of the Interior, Geological Survey,...”
Government Document Conference Proceeding Book -
4Published 1976“...Dept. of the Interior, Geological Survey ;...”
Government Document Conference Proceeding Book -
5Published 1977“...Dept. of the Interior, Geological Survey,...”
Government Document Conference Proceeding Book -
6by Smoot, Joseph P.“...Dept. of the Interior, Geological Survey :...”
Published 1987
Government Document Conference Proceeding Microform Book -
7Published 1981“...U.S. Dept. of the Interior, Geological Survey,...”
Government Document Conference Proceeding Book -
8Published 1981“...U.S. Dept. of the Interior, Geological Survey,...”
Government Document Conference Proceeding Book -
9Published 1983“...U.S. Dept. of the Interior, Geological Survey ;...”
Government Document Conference Proceeding Book -
10Published 1983“...U.S. Dept. of the Interior, Geological Survey,...”
Government Document Conference Proceeding Book -
11Published 1984“...U.S. Dept. of the Interior, Geological Survey ;...”
Government Document Conference Proceeding Book -
12Published 1984“...U.S. Dept. of the Interior, Geological Survey,...”
Government Document Conference Proceeding Microform Book -
13Published 1986“...U.S. Dept. of the Interior, Geological Survey,...”
Government Document Conference Proceeding Microform Book -
14Published 1986“...U.S. Dept. of the Interior, Geological Survey,...”
Government Document Conference Proceeding Microform Book -
15Published 1985“...U.S. Dept. of the Interior, Geological Survey ;...”
Government Document Conference Proceeding Microform Book -
16Published 1988“...U.S. Dept. of the Interior, Geological Survey :...”
Government Document Conference Proceeding Microform Book -
17Published 1985“...U.S. Dept. of the Interior, Geological Survey :...”
Government Document Conference Proceeding Microform Book -
18Published 1987“...U.S. Dept. of the Interior, Geological Survey :...”
Government Document Conference Proceeding Microform Book -
19Published 1984“...U.S. Dept. of the Interior, Geological Survey :...”
Government Document Conference Proceeding Microform Book -
20Published 1984“...U.S. Dept. of the Interior, Geological Survey :...”
Government Document Conference Proceeding Microform Book