APA

American Institute of Mining and Metallurgical Engineers, . (1939). Mining and Metallurgy. New York: American Institute of Mining and Metallurgical Engineers.

Chicago

American Institute of Mining and Metallurgical Engineers, . 1939. Mining and Metallurgy. New York: American Institute of Mining and Metallurgical Engineers.

Harvard

American Institute of Mining and Metallurgical Engineers, . (1939). Mining and Metallurgy. New York: American Institute of Mining and Metallurgical Engineers.

MLA

American Institute of Mining and Metallurgical Engineers, . Mining and Metallurgy. New York: American Institute of Mining and Metallurgical Engineers. 1939.