Estudios Sociales 2ð grado 

 - 1a ed. 
 - SAN SALVADOR, EL SALVADOR :  MINED,  1994 
 - 132 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCACION--EL SALVADOR<br/>EDUCACION PRIMARIA
<br/><br/><label>Dewey Class. No.: </label>372.7   / E37