APA (7th ed.) Citation

Sousa, L. J. (1981). The U.S. copper industry: Problems, issues, and outlook. U.S. Dept. of the Interior, Bureau of Mines.

Chicago Style (17th ed.) Citation

Sousa, Louis J. The U.S. Copper Industry: Problems, Issues, and Outlook. [Washington, D.C.?]: U.S. Dept. of the Interior, Bureau of Mines, 1981.

MLA (9th ed.) Citation

Sousa, Louis J. The U.S. Copper Industry: Problems, Issues, and Outlook. U.S. Dept. of the Interior, Bureau of Mines, 1981.