Hydroponics  

 - Peradeniya  Extension and Training Center  2002 
 - [iv],44p.  25cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cultivation, harvesting, related topics<br/>Agriculture and related technology<br/>Garden Crops
<br/><br/><label>Dewey Class. No.: </label>631.585  / HYD