Leon, J. <br/><br/>
Handbook of plant introduction in tropical crops / 
J. Leon 
 - 140 pages 
<br/><br/> FAO agriculture studies  no. 93 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tropical crops--Handbooks, manuals, etc.
<br/><br/><label>LC Class. No.: </label>SB111.F62.ASno.93.1974