Reports and maps of the Geological Survey released only in the open files, 1961 /

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:	Washington : U.S. Dept. of the Interior, Geological Survey, [1962?]
Series:	Geological Survey circular ; 463.
Subjects:	Geological Survey (U.S.) > Bibliography. Geological Survey (U.S.) > Maps > Bibliography.