TY  - BOOK
AU  - Nagpal, C.K.  .
TI  - Formal languages and automata theory / 
SN  - 0-19-807106-X
U1  - BV 
PY  - 2011///
CY  - New Delhi : 
PB  - Oxford University Press , 
KW  - Engineering (Computer science and information technology)
ER  -