000 00282nam a2200109Ia 4500
008 200302s9999 xx 000 0 und d
100 _aS. K. Duggal
245 _aBuilding Materials 2nd ed.
260 _bNew Age International Pvt. Ltd. Publishers
260 _c2007
300 _a535 P.,
999 _c2509
_d2509