Strippable reserves of bituminous coal and lignite in the United States /
by staff, Bureau of Mines.

APA Citation

United States. Bureau of Mines. (1971). Strippable reserves of bituminous coal and lignite in the United States. [Washington, D.C.]: Bureau of Mines.

MLA Citation

United States. Bureau of Mines. Strippable Reserves of Bituminous Coal And Lignite In the United States. [Washington, D.C.]: Bureau of Mines, 1971.

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