Safety aspects of longwall mining in the Illinois coal basin /
by Ernest A. Curth.
APA Citation
Curth, E. A., United States. Bureau of Mines. (1978). Safety aspects of longwall mining in the Illinois coal basin. [Washington]: Dept. of the Interior, Bureau of Mines.
MLA Citation
Curth, Ernest A, and United States. Bureau of Mines. Safety Aspects of Longwall Mining In the Illinois Coal Basin. [Washington]: Dept. of the Interior, Bureau of Mines, 1978.
Warning: These citations may not always be complete (especially for serials).