1.
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[Reston, Virginia] : U.S. Department of the Interior, U.S. Geological Survey, 2016.
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2.
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Austin, Tex. : The Survey ; Denver, CO : For sale by Open-file reports Section, 1995.
I 19.76: 95-182 |
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3.
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Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2016.
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4.
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Austin, Tex. : The Survey ; Denver, CO : For sale by Open-File Reports Section, 1994.
I 19.76: 94-345 |
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5.
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Austin, Tex. : The Survey ; Denver, CO : Copies can be purchased from Open-File Reports Section, 1994.
I 19.76: 94-346 |
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6.
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Austin, Tex. : The Survey ; Denver, CO : For sale by Open-file reports Section, 1996.
I 19.76: 96-163 |
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7.
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Austin, Tex. : The Survey ; Denver, CO : For sale by Open-File Reports Section, 1995.
I 19.76: 95-183 |
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