000			00324nam a2200145Ia 4500
008			220421s9999||||xx |||||||||||||| ||und||
020			_c500
040			_aET
100			_aGUPTA, B.L.
245		0	_aROADS, RAILWAYS, BRIDGES
260			_bSTANDARD PUBLICATION _aDELHI
300			_a5.126
500			_a52980
942			_cBK
999			_c58994 _d58994