the plant  : the leaf 
Food and Agriculture Organization of the United Nations 
 - Rome:  FAO,  1972. 
 - 30p 
<br/><br/><br/>eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture-study and teaching
<br/><br/><label>Dewey Class. No.: </label>630.7  / FOP