TY  - BOOK
AU  - Lewis Harry R
AU  - Papadimitriou Christos H
TI  - Elements of the theory of computation
SN  - 0-13-273417-6
U1  - 005.1 
PY  - 1981///
CY  - N J
PB  - Prentice Hall Of India
KW  - Computation
KW  - Computer programming
ER  -