Title |
Preliminary integrated geologic map databases for the United States. Digital Data for the reconnaissance geologic map of the lower Yukon River region, Alaska [electronic resource] / by Frederic H. Wilson ... [et al.] ; geologic map by William W. Patton, Jr., Frederic H. Wilson, and Keith A. Labay ; U.S. Department of the Interior, U.S. Geological Survey. |
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