Economic geology of the Georgetown quadrangle (together with the Empire district) Colorado /

Bibliographic Details
Main Author:	Spurr, Josiah Edward, 1870-1950
Other Authors:	Garrey, G. H. (George H.), 1886-, Ball, Sydney Hobart, 1877-1949
Format:	Government Document Book
Language:	English
Published:	Washington : Govt. Print. Off, 1908.
Series:	U.S. Geological Survey professional paper ; 63.
Subjects:	Mines and mineral resources > Colorado. Geology > Colorado.

Evans: US Documents (Annex 5th floor)