00322nam a2200121 a 450000500170000002000150001708200150003210000190004724500590006625000120012526000380013730000250017520251203110648.0  a007049939X  a571.3bMAR  aMartin,John C.  aIntroducton to Languages and the Theory of computation  a3rd ed.  aNew DelhibTata McGraw-Hillc2004  axiii, 543p.c24cm PB