00298nam a2200121 a 450000500170000002000150001708200170003210000180004924500340006726000280010130000250012970000220015420251203111213.0  a8185015619  a005.453bAHO  aAho, Alfred V  aPrinciples of Compiler Design  aNew DelhibNarosac2002  axii,612p.c22cm.cPB  aUllman, Jeffrey D