Blasting hazard awareness : surface coal mines. - National Mine Health and Safety Academy ([Beckley, W. Va.?] : U.S. Dept. of Labor, Mine Safety and Health Administration, National Mine Health and Safety Academy, 1996)
"IG 71."
Shipping list no.: 96-0330-P.
Cover title.
Mode of access: Internet.
Keywords: Coal mines and mining -- Explosives; Coal mines and mining -- Safety measures