1.
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Washington : U.S. G.P.O. ; Denver, CO : For sale by the Books and Open-File Reports Sect., U.S. Geological Survey, 1988.
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2.
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Menlo Park, CA : U.S. Dept. of the Interior, U.S. Geological Survey, 1993.
I 19.76: 93-286 |
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3.
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[Reston, Va.] : Dept. of the Interior, U.S. Geological Survey, 1995.
I 19.76: 95-265 |
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4.
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Washington, D.C. : Smithsonian Institution Press, 1990.
QE701 .S56 no. 68 QE772 |
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5.
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Washington, Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1972.
QE701 .S56 no. 13 QE783.E2 |
Map It |
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6.
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Washington, D.C. : U.S. Dept. of the Interior : [Supt. of Docs., U.S. G.P.O., distributor], 1980.
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