TY - BOOK ID - 139094774 TI - Determining compliance under 30 C.F.R. SS 56.5002 and 57.5002 PY - 2010 PB - [Arlington, Va.] : [U.S. Dept. of Labor, Mine Safety and Health Administration], DB - UniCat KW - Mine safety KW - Mine ventilation. KW - Mine dusts. UR - https://www.unicat.be/uniCat?func=search&query=sysid:139094774 AB - ER -