TY  - BOOK
AU  - Lewis, Harry R.
ED  - Papadimitriou, Christos H.
TI  - Elements of the theory of computation
SN  - 9788120322332
U1  - 621.3819501511 
PY  - 2008///
CY  - New Delhi
PB  - PHI Learning
KW  - Computer science
KW  - Computers
ER  -