The soil body :  slide-tape instructional unit SR-1 

 - Los Banos Laguna :  The International Rice Research Institute,  [date of publication not identified] 
 -  illustration ;  23 cm 
 - Rice production training series .
 - Rice production training series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils<br/>Soils --Composition<br/>Soils --Classification. 
<br/><br/><label>LC Class. No.: </label>S591.5 S65