Porter, C. L.  1905-. <br/><br/>
Taxonomy of flowering plants / 
by C. L. Porter. 
 - 2nd ed. 
 - San Francisco :  W. H. Freeman,  1967. 
 - 472 p. :  ill. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Angiosperms.<br/>Botany--Classification.