000 004470000a22001690004500
008 160902b1962 xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a624.012.4
_bPOR
942 _cPM
_2udc
245 _a[Concrete Information] Surface treatments for concrete floors
260 _bPortland Cement Association
260 _aSkokie
260 _c1962
300 _a[4]p. : ill.
650 _aCONCRETE FLOORS
999 _c22334
_d22334