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		No cover image available The experience of gdr in the teaching of science and technology and productive work / Dietrich Blandow; Erwin Messner. by Blandow, Dietrich. Material type: Text; Literary form: Not fiction Publication details: Berlin : UNESCO, 1987Availability: Items available for reference: Disponible (Préstamo en sala) (1) . Collection(s): UNESCO Call number: 371.13: 5: 6 (430.2) =20 "1987" BLA.
		No cover image available The Experience of GRD in the teaching of science and technology and productive work/ by Dietrich Blandow; Erwin Messner. by Blandow, Dietrich \| Messner, Erwin, coaut. Material type: Text; Literary form: Not fiction Publication details: Berlin : University College of Education, 1987. Availability: No items available.

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