Reports and maps of the Geological Survey released only in the Open Files, 1959 /

Bibliographic Details
Main Author:	Weld, Betsy A.
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Asselstine, Erwin S., Johnson, Arthur
Format:	Government Document Book
Language:	English
Published:	[Place of publication not identified] : [publisher not identified] ; 1959.
Series:	Geological Survey circular ; 428.

by Weld, Betsy A.
Published 1960

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