Agapay, Ramon B. <br/><br/>
Logic :  the essentials of deductive reasoning / 
Ramon B. Agapay. 
 - Metro Manila :  National Book Store,  c1991. 
 - 214 pages. 
<br/><br/><label>ISBN: </label>9710848917 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.
<br/><br/><label>LC Class. No.: </label>BC 71  / A36