Hits 1-5 within 5 documents
Hits 1-5 within 5 documents
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1978. 28p.
Author(s): Schlegel, Uta; Süße, Heinz.- 1975. 20p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1977. 35p.
Author(s): Netzker, Wolfgang.- 1979. 13p.
Author(s): Mehlhorn, Hans-Georg.- 1979. 82p.