Bentley Maxwell <br/><br/>
Commercial hydroponics:facts and figures 

 -  1959 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>57794 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Hydroponics<br/>Agriculture
<br/><br/><label>Dewey Class. No.: </label>J995, J9