A practical study of argument 
Govier, Turdy. 
 -  Wadsworth Publishing Company.  1985 
 - x, 389 pages. 
<br/><br/>
<br/><br/><label>ISBN: </label>0-534-03333-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.
<br/><br/><label>Dewey Class. No.: </label>167 G74 1985