TY  - BOOK
AU  - Lewis, Harry R.
AU  - Papadimitriou, Christos H.
TI  - Elements of the theory of computation
SN  - 9788120322332
U1  - 005.131 
PY  - 2009///
CY  - New Delhi
PB  - PHI
KW  - Computer Science Engineering
ER  -