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I 19.76: 91-4-A |
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Menlo Park, Calif. : U.S. Dept. of the Interior, U.S. Geological Survey, 1998.
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[Denver, CO] : U.S. Geological Survey, 1990.
I 19.76: 90-261 |
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Menlo Park, CA : U.S. Dept. of the Interior, U.S. Geological Survey ; [Denver, Colo. : Branch of Information Services, distributor], 1999.
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[Reston, VA] : U.S. Dept. of the Interior, U.S. Geological Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor, 1993]
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