Hopcroft, John E. <br/><br/>
Introduction to automata theory, languages, and computation/ 
John E. Hopcroft 
 - Philippines :   Addison Wesley Longman, inc.,   c2001. 
 - xiv 521 p. ;   21 cm. 
<br/><br/>Include index. 
<br/><br/><label>ISBN: </label>981-4096-51-2 
<br/><br/><label>Dewey Class. No.: </label>Circ. 511.3 H771i 2001