Walton Douglas Ed. <br/><br/>
Historical foundations of informal logic. 

 - Sydney  Ashgate         1997 
 - x,180p.  cm. 
<br/><br/><label>Standard No.: </label>42007 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>R1v, N7