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I 19.76: 90-522 |
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I 19.76: 90-516 |
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[Menlo Park, CA] : U.S. Geological Survey, 1990.
I 19.76: 90-513 |
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Menlo Park, Calif. : U.S. Geological Survey, 1991.
I 19.76: 91-377 |
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I 19.76: 91-139 |
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Washington : U.S. G.P.O. ; Denver, CO : For sale by the Open-File Reports Section, U.S. Geological Survey, 1988.
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[Menlo Park, CA] : U.S. Geological Survey, U.S. Dept. of the Interior ; [Denver, Colo. : Books and Open-File Reports Section, distributor], 1992.
I 19.76: 92-444 |
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[Menlo Park, Calif.] : U.S. Geological Survey, 1990.
I 19.76: 90-620 |
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[Menlo Park, CA] : U.S. Geological Survey, 1990.
I 19.76: 90-618 |
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