Crissman, Charles C. <br/><br/>
Seed potato systems in Ecuador  : a case study 

 - Lima :  Centro Internacional de la Papa,  1989 
 - 56 p.  : ilus. 
<br/><br/> 37-143 
<br/><br/><label>LCCN: </label>669 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Papa--Ecuador.<br/>Papa--Semilla.