TY  - BOOK
AU  - Hopcroft, John E. (John Edward)
AU  - Ullman, Jeffrey D
TI  - Introduction to automata theory, languages, and computation
U1  - 005.131 
PY  - 1979///
CY  - New Delhi
PB  - Narosa pub. House
KW  - Machine theory
KW  - Formal languages
KW  - Computational complexity
ER  -