Hudson, W D <br/><br/>
The Is/Ought Question 

 - New york  The Macmillan Press Ltd  1969 
 - 271 
<br/><br/><label>ISBN: </label>0333105974 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophy
<br/><br/><label>Dewey Class. No.: </label>170.8  / HUD/I