Applications for patent on oil-shale lands : consolidated hearings before the Committee on the Public Lands, House of Representatives, Seventy-first Congress, second and third sessions, on H.R. 3754, H.R. 12802, H.R. 13191, H.R. 15002, H.R. 15130, H.R. 15131, H.R. 15132.
|Corporate Author:||United States.|
Washington : U.S. G.P.O., 1931.
> United States.
Petroleum > United States.
Parts 1 and 2, revised print, issued also separately.
"Parts 1, 2, and 3."
Don B. Colton, chairman.
ii, 188 p. ;
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