TY  - BOOK
AU  - Lewis, Harry R.
AU  - Papadimitriou, Christos H. 
TI  - Elements of the theory of computation 
SN  - 9789332549890
U1  - 004.1  
PY  - 2015///
CY  - Noida, India
PB  - Pearson India Education
KW  - Machine theory
KW  - Computational complexity
KW  - Formal languages
ER  -