TY  - BOOK
AU  - Lewis, Harry R.
AU  - Papadimitriou, Christos H. 
TI  - Elements of the theory of computation
SN  - 9788131703878
U1  - 005.131/LEW 
PY  - 2008///
CY  - Delhi
PB  - Pearson education
KW  - Formal languages
KW  - Computational complexity
KW  - Machine theory
N1  - Includes index
ER  -