DEPARTMENT OF THE INTERIOR
ALBERT B. FALL, SECRETARY
BUREAU OF MINES
H. FOSTER BAIN, DIRECTOR
OIL - SHALE
AN HISTORICAL, TECHNICAL, AND ECONOMIC
MARTIN J. GAVIN
STATE OF COLORADO CO-OPERATIVE OIL-SHALE
(This bulletin was printed by the State of Colorado, as,
part of the co-operative agreement with the Bureau of
Mines for the investigation of oil-shales.)
THE BRADFORD-ROBINSON PRINTING CO.
Gavin, Martin J. Oil-Shale: An Historical, Technical, and Economic Study. Denver, Colorado. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc66388/. Accessed July 30, 2015.