Grimaldi, Ralph P. <br/><br/>
Discrete and combinatiorial mathematics 

 - 4th edition. 
 - Delhi :  Pearson Education,  1994 
 - 791. 
<br/><br/><label>ISBN: </label>8178086514  
<br/><br/><label>Subjects--Topical Terms: </label><br/>General principles of mathematics
<br/><br/><label>Dewey Class. No.: </label>511  / GRI