Geological Survey research 1976 :
a summary of recent significant scientific and economic results accompanied by a list of geologic and hydrologic investigations in progress and a report on the status of topographic mapping /
U.S. Geological Survey.
|Corporate Author:||Geological Survey (U.S.)|
Washington : U.S. Govt. Print. Off., 1976.
Geology > Geology / United States.
Water resources development > Water resources development / United States.
xi, 414 p. :
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||University of California|