TY  - BOOK
AU  -  Lewis, Harry R; Papadimitriou, Chistos H
TI  -  Elements of the theory of computataion
SN  - 1456
U1  -  004  LEW-E2 
PB  -  Prentice - Hall of India, Pvt. ltd., New Delhi
KW  -  Computer science
ER  -