Walton, David,  1945 <br/><br/>
The Focalguide to plants and flowers / 
by David Walton 
 - London  :  Focal Press,  1979 
 - 147 p. :  ill. (some col) ;  19 cm. 
<br/><br/>Bibl.: p.142-144. - Index 
<br/><br/><label>ISBN: </label>0240509994 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photography of plants