Sievers, A. F.  1885- <br/><br/>
Production of drug and condiment plants. 

 - [Washington,  U.S. Govt. Print Off.,  1949] 
 - 99 p.  illus.  24 cm. 
 - Farmers' bulletin  no. 1999 .
 - Farmers' bulletin (United States. Department of Agriculture) ;  no. 1999. .
<br/><br/> Contribution from Bureau of Plant Industry, Soils, and Agriculture Engineering.  Supersedes Farmers' bulletin no. 663, Drug plants under cultivation, by W. W. Stockberger. 
<br/><br/><label>LCCN: </label>agr49000516  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Herbs.
<br/><br/><label>LC Class. No.: </label>S21  / .A6 no. 1999 
<br/><br/><label>Dewey Class. No.: </label>633.8