000 00224nam a2200073 4500
080 _a
_b
245 _aIS: 2572-1963 Code of practice for construction of hollow concrete block masonry.
100 _aBUREAU OF INDIAN STANDARDS
260 _aNEW DELHI
_bBIS
_c1964
300 _a19p
999 _c36248
_d36248