TY  - BOOK
AU  - Patel , R. B. ,
AU  -  Prem Nath
TI  - Theory of computation with formal languages 
SN  - 978-9380016528
U1  - 519.4 
CY  - Ahmedabad
PB  - Khanna Publication
KW  -  Computation
KW  - Machinery
KW  - Grammars
ER  -