THE ENCYCLOPEDIA of the biological sciences 
/  edited by Peter Gray 
 - 2nd ed. 
 - New York  Van Nostrand Reinhold Co.  1961 
 - xxv, 1027 p. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>442156294 
<br/><br/><label>Dewey Class. No.: </label>574.03  / ENC