Geological Survey research 1978 :
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.
|Corporate Author:||Geological Survey (U.S.)|
Washington : U.S. Govt. Print. Off., 1978.
Geology > Geology / Research.
ix, 464 p. :
ill., maps ;
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||University of California|