Montemayor, Felix M. <br/><br/>
Harmony of logic / 
Felix M. Montemayor. 
 - Revised Edition 
 - Mandaluyong City :  National Book Store,  1993. 
 - 276 pages :  illustration ;  22 centimeter. 
<br/><br/> Includes index. 
<br/><br/>References: page 277. 
<br/><br/><label>ISBN: </label>971-08-5647-2 
<br/><br/><label>Dewey Class. No.: </label>FIL 160 M76h 1993