Harrison Jonathan. <br/><br/>
Our knowledge of right and wrong /  
Jonathan Harrison . 
 - London :    Allen & Unwin,    1971. 
 - 407  p. ;    23 cm. 
 - Muirhead library of philosophy. .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Ethics.
<br/><br/><label>Dewey Class. No.: </label>170 HAR