00290nam a2200109Ia 4500003000400000008004100004100002900045245004400074250001400118260003400132300001400166OSt200923b           ||||| |||| 00| 0 eng d  aPatel, R.B. & Nath, Prem  aTheory of automata and formal languages  a2ndb2007  aNew DelhibUmesh Publications  a545 Pages