TY  - BOOK
AU  - LEWIS, HARRY R
AU  - PAPADIMITRIOU, CHRISTOS H
TI  - Elements of the Theory of Computation
SN  - 8120322339
U1  - 511 
PY  - 1981///
CY  - NEW DELHI
PB  - PHI LEARNING
KW  - COMPUTATION--THEORY
ER  -