World crops international directory and handbook  

 - London:   Leonard Hill,   1967 
 - 326p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture 
<br/><br/><label>Subjects--Index Terms: </label>Crops 
<br/><br/><label>Universal Decimal Class. No.: </label>R  633(058..7)