APA (7th ed.) Citation

United States. Bureau of Mines. (1993). A cost comparison of selected coal mines from Australia, Canada, Colombia, South Africa, and the United States. United States Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

United States. Bureau of Mines. A Cost Comparison of Selected Coal Mines from Australia, Canada, Colombia, South Africa, and the United States. [Washington, D.C.]: United States Dept. of the Interior, Bureau of Mines, 1993.

MLA (9th ed.) Citation

United States. Bureau of Mines. A Cost Comparison of Selected Coal Mines from Australia, Canada, Colombia, South Africa, and the United States. United States Dept. of the Interior, Bureau of Mines, 1993.