Instituto Linguistico de Verano <br/><br/>
Secoya Coca 

 -  Govt. of Ecuador Ministry of Education  1962 
 - 36p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>P791633
<br/><br/><label>Dewey Class. No.: </label>P791633  / J2