1.
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Washington : U.S. G.P.O. ; Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1988.
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2.
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Washington : U.S. G.P.O. ; Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1987.
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3.
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Menlo, CA : U.S. Geological Survey ; [Washington, D.C.?] : Bureau of Land Management ; Denver, CO : USGS Information Services, [distributor], 2001.
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4.
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[Reston, Va.] : The Survey, 1999.
I 19.76: 98-494 |
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5.
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[Reston, Va.?] : The Survey, 1999.
I 19.76: 98-493 |
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6.
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[Reston, Va.] : The Survey, 1996.
I 19.76: 97-481 |
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7.
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Washington : U.S. Govt. Print. Off. : for sale by the Supt. of Docs., 1980.
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8.
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Washington : U.S. G.P.O. ; Denver, CO : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1987.
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9.
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[Menlo Park, Calif.] : The Survey, 1990.
I 19.76: 90-514 |
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10.
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[Menlo Park, Calif.] : The Survey, 1990.
I 19.76: 90-515 |
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