000 00250nam a2200097Ia 4500
008 211209s9999 xx 000 0 und d
041 _aeng
082 _a620.135 BLA/KEN N53 BLA
100 _aBLANKS, ROBERT F
245 _aTECHNOLOGY OF CEMENT AND CONCRETE
999 _c2492
_d2492