Reports and maps of the Geological Survey released only in the open files, 1971 /

Bibliographic Details
Main Author:	Weld, Betsy A.
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Iseri, Kathleen T., Brett, George W.
Format:	Government Document eBook
Language:	English
Published:	Washington : U.S. Dept. of the Interior, Geological Survey, 1972.
Series:	Geological Survey circular ; 648.
Subjects:	Geological Survey (U.S.) > Bibliography. Geological Survey (U.S.) > Maps > Bibliography.
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