TY  - BOOK
AU  - Hopcroft, John E
TI  - Introduction to automata theory, languages and computation
SN  - 8178083477
U1  - 006.3 P1;2 
PY  - 2001///
CY  - New Delhi
PB  - Pearson Education
KW  - Machine theory
KW  - Formal languages
KW  - Computational complexity
ER  -