Ross  , Kenneth . A; Wright ,Charles R.B. <br/><br/>
Discrete Mathematics 

 - 3rd 
 - Englewood cliffs  : prentice-hall  1992 
 - xiv,753 
<br/><br/><label>ISBN: </label>0-13-218207-6 
<br/><br/><label>Subjects--Personal Names: </label><br/>Mathematics
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humanities and Natural sciences