000 00469 a2200181 04500
001 2119
008 050524s1971 eng d
041 0 _aeng
082 0 _a624.1834
_bL723l
110 2 _aAmerican Concrete Institute. ACI
_954566
245 0 _aLightweight concrete.
260 4 _aDetroit.:
_bACI.
_c1971.
300 4 _a321. p.
650 _aCONCRETO liviano
_954567
650 _aCONCRETO
_954568
942 _2ddc
_cBK
999 _c2556
_d2556