000 00228nam a2200073 4500
080 _a
_b
245 _aIS: 2117 - 1991; Guide for manufacture of Hand-made common Burnt-clay building bricks
100 _aBUREAU OF INDIAN STANDARDS
260 _aNEW DELHI
_bBIS
_c1991
300 _a13p
999 _c36225
_d36225