Logic : simplified and integrated 
Reyes, Edgardo A. 
 -  National Book Store, Inc.  1988 
 - xi, 314 pages. 
<br/><br/>
<br/><br/><label>ISBN: </label>9-71084964-6 
<br/><br/><label>Dewey Class. No.: </label>F 160 R33l 1988