Synthetic liquid fuels :
annual report of the Secretary of the Interior for 1949.
part 2,
oil from oil shale.

APA Citation

United States. Bureau of Mines. (1950). Synthetic liquid fuels: annual report of the Secretary of the Interior for 1949. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines.

MLA Citation

United States. Bureau of Mines. Synthetic Liquid Fuels: Annual Report of the Secretary of the Interior for 1949. [Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, 1950.

Warning: These citations may not always be complete (especially for serials).