Douglas, J. Sholto.  <br/><br/>
Hydroponics :   the Bengal system / 
J. Sholto Douglas. 
 - 2nd ed. 
 - London :   Oxford Univrsity Press,  c 1955. 
 - xi, 153 p. :  ill. ;  18 cm. 
<br/><br/> Includes index 
<br/><br/>346  346 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Techniques, equipment, materials.<br/>Hydroponics.
<br/><br/><label>Dewey Class. No.: </label>631.58 / D745h