TY  - BOOK
AU  - Lewis, Harry R.
AU  -  Papadimitriou, Christos H.
TI  - Elements of the theory of computation
SN  - 9788120310162
U1  - 519.6 
PY  - 1981///
CY  - New Delhi
PB  - Prentice Hall
KW  - MATHEMATICS
KW  - THEORY OF COMPUTATION
ER  -