000 00428 a2200121 4500
080 _a628.4:614.8
_bKNO
100 _aKnowlton, R. Ellis6950
245 _aAn introduction to hazard and operability studies
_bThe guide word approach
300 _a43p.
650 _a628.4:614.8
_xAccident hazard control system
_xNational safety council
_xSafety engineering6949
942 _cBK
_2ddc
260 _aMumbai
_bNational Safety Council
_c1991
999 _c349704
_d349704