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Klein, Helmut. | Didaktische Prinzipien und Regeln
VIAF ID: 2840151474941600490008 ( Unknown Name Type )
Permalink: http://viaf.org/viaf/2840151474941600490008
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Author
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Klein, Helmut.
Language | Title | Expression | Sources |
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Polish | Zasady i reguły dydaktyczne | Kupisiewicz :1962 |