000			00352nam a2200157Ia 4500
008			230913s9999 xx 000 0 und d
082			_a624 DUG
100			_aDuggal, S.K.
245		0	_aBuilding Materials
250			_aIII rev
260			_aNEW DELHI
260			_b NEW AGE
260			_c2011
300			_axvi,525
650			_aCivil Engineering
999			_c118439 _d118439