Cronquist, Arthur,  1919- <br/><br/>
An integrated system of classification of flowering plants / 
Arthur Cronquist 
 - New York :  Columbia University Press,  1981 
 - xviii,1262p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographies and index 
<br/><br/><label>ISBN: </label>0231038801 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Angiosperms--Classification