TY  - BOOK
AU  - Lewis, Harry R.
AU  - Papadimitriou, Christos H.
TI  - Elements of the Theory of Computation / 
SN  - 9789332549890
U1  - 511.3 
PY  - 2015///
CY  - Noida: 
PB  - Pearson India Education Services Pvt.Ltd.
ER  -