Gerber, Siegfried E. <br/><br/>
Modern Way of Agriculture and its Impact on Enviroment:  

 - Nakuru   TechnoPress  1990 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Controlled -Enviroment agriculture.
<br/><br/><label>Dewey Class. No.: </label>631.583 GER.