Hurley, Patrick J. <br/><br/>
A concise introduction to logic / 
Patrick J. Hurley. 
 - 7th ed. 
 - Belmont, Calif. :  Wadsworth Publishing,  2000 
 - 688 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>0534520065 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic
<br/><br/><label>Dewey Class. No.: </label>160  / H965C 2000