Welton, James, et al. <br/><br/>
Intermediate logic / 
Welton, James, et al. 
 - 4 ed. 
 -  University Tutorial Press Ltd., London,  1962 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic
<br/><br/><label>Dewey Class. No.: </label>160 WEL-I4