Schopfer, W S <br/><br/>
Plants and Vitamins 

 - U.S.A  Waltham, Mass  1949 
<br/><br/><label>Subjects--Uniform Titles: </label>--General Stack
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural sciences & mathematics--Botany--PlantsBotany
<br/><br/><label>Dewey Class. No.: </label>580  / SCH-P