000 00232nam a2200073 4500
080 _a
_b
245 _aIS: 3951-Part 1;Specification for hollow clay tiles for floors and roofs Part 1;Filler type
100 _aBUREAU OF INDIAN STANDARDS
260 _aNEW DELHI
_bBIS
_c1975
300 _a9
999 _c36240
_d36240