TY  - BOOK
AU  - Hopcroft, John E 
AU  - Motwani, Rajeev 
AU  - Ullman, Jeffry D 
TI  - Introduction to Automata Theory, Languages and Computation
SN  - 9788131764619
PY  - 2012///
CY  - New Delhi
PB  - Pearson
ER  -