Richdale, Lancelot Eric. <br/><br/>
A population study of penguins. 

 - Oxford :    Clarrendon Press,    1957. 
 - 195 p. :    illus., digrs. tables. ;    25 cm. 
<br/><br/>Includes bibliographical references (p. [187]-189) 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Penguins.<br/> Birds -- Habits and behavior.
<br/><br/><label>Dewey Class. No.: </label>598.44