000 00489 a2200253 4500
001 135435
020 _a0-471-67434-61
041 _aeng
080 _a691.32 Por
245 _aPrinciples of quality concrete
250 _a
260 _aNew York
260 _bJohn Wiley,
260 _c1975
300 _axii,312 p.
300 _c23 cm
490 _a
100 _aPortland Cement Association
700 _a
650 _a
650 _aConcrete
942 _cBK
942 _2UDC
999 _c135249
_d135249