Reports and maps of the Geological Survey released only in the open files, 1970
By: Betsy A. Weld, Margaret S. Griffin, and George W. Brett
Contributors: Griffin, Margaret S., author; Brett, George W., author; Geological Survey (U.S.)
Series: Geological Survey circular -- 638; Circular (Geological Survey (U.S.)) -- 638.
Publisher: U.S. Department of the Interior, Geological Survey
Published: 1971
Place of publication: Washington
Language: eng
Number of pages: 23
Subjects: Bibliography; Maps; Geological Survey (U.S.)
Notes: Includes index.