Briggs, D. <br/><br/>
Plant variation and evolution 
[by] D. Briggs and S.M. Walters. 
 - New York  McGraw-Hill  [1969] 
 - 256 p.  illus. (part col.), facsims., maps.  20 cm. 
 - World university library .
<br/><br/>Bibliography: p. 240-252. 
<br/><br/><label>LCCN: </label>68008668 //r864 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany--Variation.<br/>Plants--Evolution.
<br/><br/><label>LC Class. No.: </label>QH406  / .B68 
<br/><br/><label>Dewey Class. No.: </label>581.1/5