Mine electricity :
metal/nonmetal surface and underground entry level training.

APA Citation

National Mine Health and Safety Academy. (1999). Mine electricity: metal/nonmetal surface and underground entry level training. Rev. 1999. [Washington, D.C.?]: U.S. Dept. of Labor, Mine Safety and Health Administration, National Mine Health and Safety Academy.

MLA Citation

National Mine Health and Safety Academy. Mine Electricity: Metal/nonmetal Surface And Underground Entry Level Training. Rev. 1999. [Washington, D.C.?]: U.S. Dept. of Labor, Mine Safety and Health Administration, National Mine Health and Safety Academy, 1999.