Midgley, Mary,  1919- <br/><br/>
Animals and why they matter / 
Mary Midgley 
 - Harmondsworth :  Penguin,  1983 
 - 158 p. :  ill. ;  20cm 
 - Pelican books .
<br/><br/>Includes index Bibliography: p.146-153 
<br/><br/><label>ISBN: </label>014022386X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ethics<br/>Social ethics<br/>Social contract<br/>Animals