000 00302nam a2200121Ia 4500
008 250409s9999 xx 000 0 und d
020 _a81-203-2233-2
082 _a4
_bLEW
100 _alewis, H
245 0 _aElements of the Theory of Computation
260 _aNew Delhi
_bPHI
_c2009
365 _a250
999 _c256477
_d256477