Wren, R C <br/><br/>
Potter's cyclopaedia of botanical drugs and preparations  

 - 5th ed. 
 - London:   Potter & Clarke, Ltd.,   1941 
 - xlvi, 417p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Subjects--Index Terms: </label>Botany 
<br/><br/><label>Universal Decimal Class. No.: </label>R 633.88:615   / H1