000 00236nam a2200073 4500
080 _a
_b
245 _aIS: 1489 (Part 2) - 1991; Portland-pozzolana cement - Specification Part 2 Calcined clay based
700 _aBureau of Indian Standards
260 _aNew Delhi
_bBIS
_c1991
300 _a8p
999 _c34879
_d34879