Animal behavior :   An evolutionary approach /  
Alcock John 
 - 7th ed. 
 - Sunderland :   Sinauer Associates, Inc.  2001 
 - viii , 543 p. ;   coll. ; ill.  28 cm. 
<br/><br/><label>ISBN: </label>0-87893-011-6 
<br/><br/><label>LC Class. No.: </label>QL751  / .A42  2001