Peter J. Houghton <br/><br/>
Valerian : The Genus Valeriana 

 - New York  CRC Press  1997 
 - 142p 
<br/><br/>Peter J. Houghton: Valerian : The Genus Valeriana.  New York.  CRC Press, 1997. 90-5702-170-1--(581.634HOU)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>90-5702-170-1 
<br/><br/><label>Dewey Class. No.: </label>581.634  / HOU