1.
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Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by U.S. Geological Survey, Information Services, 1999.
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2.
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[Denver, Colo.] : U.S. Dept. of the Interior, U.S. Geological Survey, 1998.
I 19.76: 98-239 |
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3.
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Washington : U.S. G.P.O. ; Alexandria, VA : For sale by the Distribution Branch, U.S. Geological Survey, 1985.
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4.
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Vancouver, Wash. : U.S. Geological Survey ; Denver, Colo. : Books and Open File Reports Section [distributor], 1992.
i 19.76: 90-385 |
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5.
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Vancouver, Wash. : Dept. of the Interior, U.S. Geological Survey ; Denver, CO : For sale by U.S. Geological Survey, Information Services, 1997.
I 19.76: 96-179 |
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6.
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[Reston, VA] : U.S. Geological Survey ; [Denver, Colo. : Books and Open-File Reports Section, distributor] 1991.
I 19.76: 91-242 |
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7.
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[Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey, [1997?]
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