Coal geology and coal, oil, and gas resources of the Erie and Frederick Quadrangles, Boulder and Weld counties, Colorado /

Bibliographic Details
Main Author: Spencer, Frank Darwyn, 1904-
Corporate Author: Geological Survey (U.S.)
Format: Government Document Book
Language:English
Published: [Reston, Va.] : Dept. of the Interior, U.S. Geological Survey, 1986.
Series:U.S. Geological Survey bulletin ; 1619.
Subjects: