Coal resources of Colorado /

Bibliographic Details
Main Authors:	Spencer, Frank Darwyn, 1904- (Author), Erwin, Margaret I. (Author)
Format:	Government Document eBook
Language:	English
Published:	Washington, D.C. : United States Department of the Interior, Geological Survey, 1953.
Series:	Geological Survey circular ; 258.
Subjects:	Coal mines and mining > Colorado. Coal reserves > Colorado. Coal reserves. Colorado.
Online Access:	https://purl.fdlp.gov/GPO/gpo108874

Available Online