Environmental philosophy :  from animal rights to radical ecology / 
edited by Michael E. Zimmerman ... [et al.]. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  c1993. 
 - x, 437 p. ;  23 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>013666959X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology--Philosophy.<br/>Environmental ethics.