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		No cover image available Criterios para la organización de grupos escolares / J. Wayne Wrightstone ; tr. Aníbal C. Leal. by Wrightstone, Jacob Wayne, 1904-1986. Series: Nueva pedagogía ; 13Material type: Text; Format: print ; Literary form: Not fiction Publication details: México : Centro Regional de Ayuda Técnica, AID, c1970Availability: Items available for reference: Disponible (Préstamo en sala) (2) . Collection(s): Folletería Call number: LB7 N8.68 no.13.
		No cover image available Lo que los tests pueden revelar acerca de los niños / J. Wayne Wrightstone ; tr. Jaime González Yepes. by Wrightstone, Jacob Wayne, 1904-1986. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Bogotá : [s.n.], 1964Availability: Items available for loan: 1 . Collection(s): Colección General Call number: LB1131 W7.4. Place hold

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