Prior Arthur <br/><br/>
Logic and the basis of ethics . 

 - London  Clarendon Press        1949 
 - 111p.  cm. 
<br/><br/><label>Standard No.: </label>51674 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>R4, H9