000
00284nam a2200109Ia 4500
008
220201s1968 xx 000 0 eng d
100
_a
Indian Standard Institute
245
0
_a
IS:1489 specification for portland pozzolanes cement
260
_b
ISI
_c
1968
300
_a
11
942
_2
ddc
999
_c
74624
_d
74624