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61by Driver, Nancy E.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1991
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62by Armstrong, Augustus K.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1992
Government Document Book -
63Published 1991“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Government Document Microform Book -
64by Williams, Robert S.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1993
Government Document Book -
65by Johnson, Ronald C. (Ronald Carl), 1950-“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1993
Government Document Book -
66by Mueller, David K.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1993
Government Document Book -
67by Campbell, Wayne R.“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Published 1992
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68by Nichols, Thomas C.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1992
Government Document Microform Book -
69by Van Liew, William P.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1993
Government Document Book -
70Published 1993“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Government Document Book -
71Published 1993“...U.S. Dept. of the Interior, U.S. Geological Survey ;...”
Government Document Book -
72by Litke, David W.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1993
Government Document Book -
73by Parise, Mario“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1992
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74by Guzzi, Raffaela“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1992
Government Document Microform Book -
75by Franczyk, Karen J.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1992
Government Document Microform Book -
76by Erdman, James A.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1993
Government Document Microform Book -
77by Elliott, John G. (John Grant), 1951-“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1993
Government Document Book -
78by Robson, Stanley G.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1993
Government Document Book -
79by Williams, Robert S.“...U.S. Dept. of the Interior, U.S. Geological Survey :...”
Published 1993
Government Document Microform Book -
80by Brunstein, F. Craig“...[U.S. Dept. of the Interior, U.S. Geological Survey] :...”
Published 1993
Government Document Microform Book