Edger, William G. <br/><br/>
The elements of logic /  
NULL. 
 - Charts, /   . 
 - Chicago :   Science Research Association ,   1989. 
 - ix,149p. :   ill,figs,tables ;   24cm. .  
<br/><br/>NULL 
<br/><br/><label>ISBN: </label>0574187553  Rs. 386.00 
<br/><br/><label>Subjects--Index Terms: </label>LOGIC 
<br/><br/><label>Dewey Class. No.: </label>160  / EDG/L