000 00279nam a2200109Ia 4500
008 220201s1968 xx 000 0 eng d
100 _aMurdock, LJ & Blackadge
245 0 _aConcrete materials & practice
260 _bLondon: Edward arnaldo
_c1968
300 _a398
942 _2ddc
999 _c77012
_d77012