Reproductive fitness 

 - 2nd Ed.; 
 - New york :  Cambridge university press,  1972. 
 - xi,241p.;  ill.;  25cm 
<br/><br/><label>ISBN: </label>0-521-31984-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals
<br/><br/><label>Dewey Class. No.: </label>599.016  / REP