TY  - BOOK
AU  -  Hopcroft,John E .
AU  - Motwani,Rajeev  .
AU  - Ullman,Jeffrey D  .
TI  - Introduction to automata theory, languages, and computation / 
U1  - 511.3 
PY  - 2001///
CY  - New Delhi : 
PB  - Pearson Education , 
KW  - Automata theory
ER  -