Raven, Peter H. <br/><br/>
Biology of plants / 
Peter H. Raven, Ray F. Evert, Susan E. Eichhorn. 
 - 6th ed. 
 - New York :  W. H. Freeman,  c1999. 
 - xv, 944p. : col. ill. ; 28 cm. 
<br/><br/> References: p. 851-862. Includes index. 
<br/><br/><label>ISBN: </label>1572590416 
<br/><br/><label>LCCN: </label>98060171 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany.