000 00387nam a2200121Ia 4500
082 _aIS Code
_bB.I.S
100 _aBureau of Indian Standards[BIS]
245 _aIS:6922-1973. Indian standard criteria for safety and design of structures subject of underground blasts.
260 _aNew Delhi
_bBureau of Indian Standards
_c1997
300 _a8p.
500 _aENG
890 _aIndia
999 _c19247
_d19247