Discrete Mathematics and Its Applications/  English. 
Kenneth H.Rosen 
 - 4th Ed. 
 - Boston:  McGraw-Hill Companies,  1999. 
 - xxii,678p.:  ill.;  26cm. 
<br/><br/><label>ISBN: </label>00728990500 
<br/><br/><label>Dewey Class. No.: </label>510  / ROS