Coal resources of the United States
Subtitle: a progress report, November l, 1950
By: by Paul Averitt and Louise R. Berryhill.
Contributors: Berryhill, Louise R.
Series: Geological survey circular -- 94
Publisher: Govt. pr. off.
Published: 1950
Place of publication: [Washington
Language: eng
Number of pages: 33
Subjects: Coal -- United States
Notes: "December 1950."