Lang, David., <br/><br/>
Orchids of Britain :  a field guide / 
by David Lang. 
 - Oxford :  Oxford University Press,  1980. 
 - 213 pages. :  illustrations. ;  21cm. 
<br/><br/><label>ISBN: </label>0192176927 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Orchids--Identification--Great Britain<br/>Botany--Great Britain