Discrete mathematics 
ed by Olegovna Korotoyev and Febe Czetyrbok 
 - New york  Delve publishing LLC  2015 
 - x, 241p. 
<br/><br/><label>ISBN: </label>9781680952315 
<br/><br/><label>Dewey Class. No.: </label>511.3  / P15