Hits 11-16 within 16 documents
Hits 11-16 within 16 documents
Author(s): Mehlhorn, Hans-Georg; Liesk, Käte.- 1982. 47p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1979. 12p.
Author(s): Gerth, Werner.- 1968. 73p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1972. 42p.
Author(s): Spitzky, Norbert; Kasek, Leonhard; Chrapa, Michael.- 1989. 87p.
Author(s): Netzker, Wolfgang.- 1978. 22p.