Rittershausen, Wilma <br/><br/>
The Practical Encyclopedia of Orchids: A Complete Guide to Orchids and their Cultivation 
by Wilma Rittershausen 
 -  Anness Publishing  2002 
 - 256 pages ;  col. ill. ;  29 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>1-84309-529-7 
<br/><br/><label>Dewey Class. No.: </label>R/635.9344/R51/2002