000 00332nam a2200121Ia 4500
008 220201s1988 xx 000 0 eng d
041 _aENG
100 _aIS:12269-1987
245 0 _aSPECIFICATION FOR 53 GRADE ORDINARY PORTLAND CEMENT
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1988
300 _a11
942 _2ddc
999 _c62073
_d62073