Reports and maps of the Geological Survey released only in the open files, 1972
By: by Betsy A. Weld, Kathleen T. Iseri, and Marvin L. Millgate
Contributors: Iseri, Kathleen T., author; Millgate, M. L., author; Geological Survey (U.S.)
Series: Geological Survey circular -- 668; Geological Survey circular -- 668.
Publisher: U.S. Department of the Interior, Geological Survey
Published: 1973
Place of publication: Washington
Language: eng
Number of pages: 33
Subjects: Bibliography; Maps; Geological Survey (U.S.)
Notes: Includes index.