TY  - BOOK
AU  - Aho, Alfred V. ; Hopcroft, John E. ; Ullman, Jeffrey D.
TI  - The design and analysis of computer algorithms
SN  - 9788131702055
U1  - 511 AHO 
PY  - 2013///
CY  - NewDelhi
PB  - Pearson
ER  -