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Hits 1-3 within 3 documents
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1979. 39p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1979. 49p.
Author(s): Klingemann, Hans-Dieter.- 1978. 228p.