Educacion y comunicacion : El caso del libro de texto gratuito

Bibliographic Details
Main Author: Sanchez Armenta, Maria Esther
Other Authors: Salcedo Castellano, Francisco (Asesor)
Format: Tesis de licenciatura
Language:Español
Published: 1982
Subjects:
Online Access:https://hdl.handle.net/20.500.14330/TES01000005832