000 00260nam a2200109Ia 4500
008 220201s1972 xx 000 0 eng d
100 _aLYDON F D
245 0 _aCONCRETE MIX DESIGN
260 _aLONDON
_bAPPLIED SCIENCE PUB
_c1972
300 _a148
942 _2ddc
999 _c89256
_d89256