TY  - BOOK
AU  - Lewis H R
AU  - Papadimitriou C H
TI  - Elements of the theory of computation
SN  - 0-13-273417-6
U1  - 004 
PY  - 1981///
CY  - N J
PB  - Prentice Hall
KW  - Computation
KW  - Computer science
ER  -