TY  - BOOK
AU  - Lewis, Harry R
AU  - Papadimitriou, Christos H
TI  - Elements of the theory of computation
SN  - 9788120322332
U1  - 004 LEW/E 
PY  - 1998///
CY  - New Delhi
PB  - PHI Learning
KW  - COMPUTER SCIENCE
KW  - COMPUTATIONAL COMPLEXITY
KW  - FORMAL LANGUAGES
KW  - AUTOMATA THEORY
ER  -