Readings in ethical theory / 
edited by Wilfrid Sellars, John Hospers. 
 - 2nd ed. 
 - Englewood Cliffs, N.J.:  Prentice-Hall,  1970. 
 - 786 p. ;  26 cm. 
<br/><br/><label>ISBN: </label>0137560079 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ethics