Purtill Richard <br/><br/>
Thinking about ethics . 
Purtill Richard 
 - New Jersey   Prentice - Hall      1976 
 - ix,147p.  cm. 
<br/><br/><label>Standard No.: </label>129255 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>R4, L6