000 | 00608 a2200289 4500 | ||
---|---|---|---|
001 | 31802 | ||
020 | _a9 | ||
041 | _aeng | ||
080 | _a666.94 Fro | ||
245 | _aFly ashes in cements and concretes : technical needs and opportunities | ||
250 | _a | ||
260 | _aWashington, DC | ||
260 | _bNational Bureau of Stds, | ||
260 | _c1981 | ||
300 | _avii,27 p. | ||
300 | _c27 cm | ||
490 | _a | ||
100 | _aFrohnsdorff, Geoffrey | ||
700 | _aClifton, James R. | ||
700 | _a | ||
650 | _a | ||
650 | _aFly ash | ||
650 | _aCement | ||
650 | _aConcrete | ||
942 | _cBK | ||
942 | _2UDC | ||
999 |
_c88734 _d88734 |