TY  - BOOK
AU  - Lewis, Harry R
AU  - Papadimitriou, Christos H
TI  - Elements of the theory of computation
U1  - 511.3 
PY  - 1998///
CY  - New Jersey
PB  - Prentice- Hall
KW  - INFORMATICA
KW  - COMPUTACION
KW  - LENGUAJE FORMALES
ER  -