Turner, Jeffrey S. & Helms, Donald B. <br/><br/>
Life span development 

 - W. B. Saunders company, Philadelphia  1979 
 - xiv,541p 
<br/><br/><label>ISBN: </label>0-7216-8936-1 
<br/><br/><label>Dewey Class. No.: </label>137 Tur/Hel