Davis, P. H. <br/><br/>
Principles of angiosperm taxonomy  / 
P. H. Davis; V. H. Heywood. 
 - London :  Oliver and Boyd,  c1963 [reprinted 1965] 
 - xx, 558 p. :  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Angiosperms -- Classification.<br/>Angiosperms.
<br/><br/><label>Dewey Class. No.: </label>582.13012  / DAP 1965