Cooper, Allen John,   1924- <br/><br/>
Nutrient film technique :  the world's first method of crop production without a solid rooting medium / 
Allen Cooper. 
 - London:  The English Language Book Society and Grower Books,  1982. 
 - 185 p. :  ill. ;  30 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0901361682 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydroponics.<br/>Plant growing media, Artificial.