German Democratic Republic :
Janke, Bruno
German Democratic Republic : mathematics, science and polytechnical instructionin the then-year polytechnical secondary schools / Bruno Janke. - Paris : UNESCO, 1988. - 15 p. - Science and technology in school curricula: case study ; 3. .
377:5 (430.2) =20 JAN No.3.
German Democratic Republic : mathematics, science and polytechnical instructionin the then-year polytechnical secondary schools / Bruno Janke. - Paris : UNESCO, 1988. - 15 p. - Science and technology in school curricula: case study ; 3. .
377:5 (430.2) =20 JAN No.3.