000			00300nam a2200133Ia 4500
008			220421s9999||||xx |||||||||||||| ||und||
040			_aET
100			_aAHO ULLMAN
245		0	_aPRINCIPLES OF COMPILER DESING
260			_bNAROSA PUB. _aNEW DELHI
300			_a612
500			_a49206
942			_cBK
999			_c55221 _d55221