Douglas, James Sholto <br/><br/>
Hydroponics: the Bengal system / 
Douglas, James Sholto 
 - 5th ed. 
 - xvi, 185 p. : ill. ; 19 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydroponics.
<br/><br/><label>Dewey Class. No.: </label>631.585