Welsh, Paul <br/><br/>
Fact, Value and Perception 
by Paul Welsh 
 - Durham  Duke University Press  1975 
 - x, 174 pages; 24 cm. 
<br/><br/> Includes bibliographic reference. 
<br/><br/><label>ISBN: </label>0-8223-0321-3 
<br/><br/><label>Dewey Class. No.: </label>808.4/F12