Agriculture. Book E 

 - London:  Heinemann Educational  Books,  1981. 
 - 63p.;  22 cm 
 - Science in Society .
<br/><br/><label>ISBN: </label>0-435-540343 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science<br/>agriculture
<br/><br/><label>Dewey Class. No.: </label>507  / AGR