TY  - BOOK
AU  - Lewis, Harry R.
AU  - Papadimitriou, Christos H.
TI  - Elements of the theory of Computation
SN  - 9788120322332
U1  - 005.131 
PY  - 1998///
CY  - New Delhi
PB  - PHI Learning
KW  - Machine theory
KW  - Formal languages
KW  - Logic, Symbolic and mathematical
ER  -