000			00297nam a2200133Ia 4500
008			220421s9999||||xx |||||||||||||| ||und||
020			_c170
040			_aET
100			_aSingh , Birinder
245		0	_aConcrete Technology
260			_bKaption Pub. _aNEW DELHI
500			_a59732
942			_cBK
999			_c65695 _d65695