Paton H.J. <br/><br/>
The categorical imperative. 

 - ed. 
 - New york :  Harper,  1947. 
 - 283  p. ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>imperative.