000			00295nam a2200133Ia 4500
008			220421s9999||||xx |||||||||||||| ||und||
020			_c150
040			_aET
100			_aSingh , Gurucharan
245		0	_aBuilding Materials
260			_bStandard Pub. _aDelhi
500			_a59721
942			_cBK
999			_c65684 _d65684