Gaya APA

Alspaugh, M. (2008). BULK MATERIAL HANDLING BY CONVEYOR BELT 7 . United States of America: Society for Mining, Metallurgy, and Exploration, Inc..

Gaya MLA

Alspaugh, Mark. "BULK MATERIAL HANDLING BY CONVEYOR BELT 7". United States of America: Society for Mining, Metallurgy, and Exploration, Inc., 2008. Text.