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		No cover image available Multiple-shift schooling : desing and operation for cost-effectiveness / MarkBray. by Bray, Mark \| UNESCO \| UNICEF. Series: Child family community ; 27.Material type: Text; Literary form: Not fiction Publication details: Paris : Nueva York : UNESCO; UNICEF, 1989Availability: Items available for reference: Disponible (Préstamo en sala) (1) . Collection(s): UNESCO Call number: 371 =20 BRA.
		No cover image available La Scolarisatiòn à vacations multiples : conception et mise en oeuvre pour un meliler rapport cout-efficacité/ Mark Bray. by Bray, Mark \| UNESCO \| UNICEF. Series: ED-89/WS/72Material type: Text; Literary form: Not fiction Publication details: Paris : New York : UNESCO; UNICEF, 1989Availability: Items available for reference: Disponible (Préstamo en sala) (1) . Collection(s): UNESCO Call number: 371 =40 BRA No. 27.

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