000 00284nam a2200109Ia 4500
008 160122s9999 xx 000 0 und d
041 _aEnglish
100 _aGurucharan Singh
245 _aBuilding Constructions tech and Materils
260 _bDelhi:Standerd Book
_c2011
300 _a780p.
999 _c6979
_d6979