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George Otis Smith
Qeological Survey"
Rare Americana Travel & Exploration Maps & Atlases
National Reaister of Historic Places Reaistration Form
The EERI Oral History Series
Memorial to Julian Ducker Sears 1891-1970
History of the Topographic Branch (Division)
North American Geology
Samuel Franklin Emmons
Proquest Dissertations
University of Oklahoma Graduate College from Creekology to Geology
U. S. Department of the Interior Geological Survey USGS: INF-74-18 FOREWORD
Ÿþm I C R O S O F T W O R
Guide to Economic Geology Collections
The United States Geological Survey
AASG History Volume
Damming Grand Canyon: the 1923 USGS Colorado River Expedition
Influence of Glacial Processes on the Height and Morphology of The
The United States Geological Survey: 1879-1989
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