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		No cover image available ¿Tiene opciones la crisis educativa ? by SOSA, Rogelio. Material type: Text; Format: print ; Literary form: Not fiction Availability: No items available.
		No cover image available Diagnóstico del sistema educativo nacional : educacion media superior / Inés Cassigoli, Josefina Alvarez, Rogelio Sosa. by Cassigoli, Inés \| Alvarez, Josefina [coaut.] \| Sosa, Rogelio [coaut.]. Material type: Text; Format: print ; Literary form: Not fiction Publication details: [México : SEP], 1977Availability: Not available: Coleccion SEP (1).

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