WHO guidelines on good agricultural and collection practices (GACP) for medicinal plants 

 -  WHO  2003 
 - i-vi, 1-72pgs 
 - Medicinal plants 
<br/><br/><label>ISBN: </label>92 4 154627 1 
<br/><br/><label>Nat. Bib. No.: </label>003871 
<br/><br/><label>Dewey Class. No.: </label>633.8 W35