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Reston, Va. : U.S. Geological Survey ; Denver, Colo. : Books and Open-File Reports Section [distributor], [1990]
I 19.76: 90-142 |
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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]
I 19.76: 93-76 |
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Reston, Va. : U.S. Geological Survey, [1990]
I 19.76: 90-141 |
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Reston, Va. : U.S. Geological Survey ; Denver, Colo. : Books and Open-File Reports Section [distributor], 1991.
I 19.76: 91-501 |
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Reston, VA : U.S. Geological Survey ; Denver, Colo. : U.S. Geological Survey, Books and Open-File Reports Section [distributor], 1993.
I 19.76: 93-410 |
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Reston, Va. : U.S. Geological Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor] 1991.
I 19.76: 91-500 |
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[Reston, Va.] : U.S. Geological Survey ; Denver, Colo. : Books and Open-File Reports Section [distributor], 1991.
I 19.76: 91-53 |
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8.
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[Reston, Va.] : U.S. Geological Survey ; Denver, Colo. : Books and Open-File Reports Section [distributor], 1990.
I 19.76: 90-185 |
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9.
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[Reston, Va.] : U.S. Geological Survey ; Denver, Colo. : Books and Open-File Reports Section [distributor], 1991.
I 19.76: 91-83 |
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10.
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Denver, Colo. : U.S. Geological Survey, Books and Open-file Reports Section, 1990.
I 19.76: 90-599 |
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