United States mineral resources.
By: Donald A. Brobst and Walden P. Pratt, editors.
Contributors: Pratt, Walden P., joint author.
Series: Geological Survey professional paper 820; Geological Survey professional paper ;; 820.
Publisher: U.S. Govt. Print. Off.
Published: 1973
Place of publication: Washington
Language: eng
Number of pages: 722
Subjects: Mines and mineral resources -- United States
Notes: Includes bibliographies.