Witala, Stephen A <br/><br/>
Discrete mathematics: A unified approach / 
Witala, Stephen A 
 -  McGraw Hill Book Co., New York,  1987 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510 WIT-D