Cuesta arriba o cuesta abajo?  (un análisis crítico de los textos de lectura de primaria) 
[por] Ana Boggio [et al.] 
 - Santo Domingo,  DESCO, Area de Educación,  1976. 
 - 159 p.  illus.  18 cm. 
 - Serie Praxis ;  2 .
<br/><br/><label>LCCN: </label>74223221  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spanish language--Study and teaching--History.--Peru<br/>Spanish language--Readers--Evaluation.<br/>Reading (Elementary)--Peru.
<br/><br/><label>LC Class. No.: </label>118 PC 4112.9  / C965 1976 
<br/><br/><label>Dewey Class. No.: </label>468/.6