Hits 131-134 within 134 documents
Hits 131-134 within 134 documents
Author(s): Hahn, Jochen.- 1984. 12p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1984. 30p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1980. 105p.
Author(s): Spitzky, Norbert; Kasek, Leonhard; Chrapa, Michael.- 1989. 87p.