Root & tuber crops  

 - Rome  IBPGR Secretariat  1981 
 - 107p.  24cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Garden Crops<br/>Agriculture and related technology<br/>Edible roots
<br/><br/><label>Dewey Class. No.: </label>635.1  / ROO