TY  - BOOK
AU  - Hopcroft, John E. 
AU  - Ullman, Jeffrey D.
TI  - Introduction to automata theory, languages and computation
SN  - 8185015961
U1  - 004.0151 H77i 
PY  - 1979///
CY  - New Delhi
PB  - Narosa Publishing House
KW  - Machine theory
KW  - Formal languages
KW  - Computational complexity
N1  - With a foreword by S.N. Maheshwari
ER  -