TY  - BOOK
AU  - LEWIS, Harry R
AU  - PAPADIMITRIOU, Christos H
TI  - Elements of the theory of computation
SN  - 8120310160
U1  - 511.3 
PY  - 1981///(1999)
CY  - DELHI
PB  - PRENTICE-HALL OF INDIA
KW  - MATHEMATICAL LOGIC
ER  -