000 00295nam a2200121Ia 4500
999 _c18294
_d18294
020 _a0835942910
100 _aAlbert G Spencer
245 _aMaterials for Construction
260 _c1982
_bRESTON PUB: CO
_aVirginia
300 _ax+438
700 _aGerald A Powell
_eDonald Hudson
942 _cREF