000			00325nam a2200133Ia 4500
008			170807s9999 xx 000 0 und d
020			_a9788122433791
100			_aDuggal,S.K.
245		0	_aBuilding Materials
250			_a4 th
260			_aNew Delhi _bNew Age International Publisher _c2012
300			_a594
942			_cBK
999			_c3694 _d3694