Johnsonbaugh, Richard. <br/><br/>
Discrete mathematics 

 - 5th edition. 
 - Delhi :  Pearson Education,  1994 
 - 621. 
<br/><br/><label>ISBN: </label>8178082799  
<br/><br/><label>Subjects--Topical Terms: </label><br/>General principles of mathematics
<br/><br/><label>Dewey Class. No.: </label>511  / JOH