000 00370nam a2200133Ia 4500
008 220623s9999 xx 000 0 und d
040 _cPTC-Calumpit
082 _aOS 003
100 _aOccupational Safety and Health Center
245 0 _aOccupational Safety and Health Standards
260 _bOccupational Safety and Health Center
_c2012
300 _a313
942 _cBK
999 _c25350
_d25350