Burger, William C. <br/><br/>
Perfect planet, clever species :  how unique are we? / 
William C. Burger. 
 - Amherst, N.Y. :  Prometheus Books,  2003. 
 - 345 p. :  ill. (some col.) ;  24 cm. 
<br/><br/>Includes bibliographical references (p. 295-328) and index. 
<br/><br/><label>ISBN: </label>1591020166 (alk. paper) 
<br/><br/><label>LCCN: </label>2002068117 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human evolution.<br/>Life on other planets.<br/>Exobiology.<br/>Evolución Humana.<br/>Vida sobre otros planetas.<br/>Exobiología.
<br/><br/><label>Dewey Class. No.: </label>599.93