Hits 1-4 within 4 documents
Hits 1-4 within 4 documents
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1986. 214p.
Author(s): Lange, Günter.- 1982. 29p.
Author(s): Bathke, Gustav-Wilhelm; Hoffmann, Achim; Kasek, Leonhard; Schauer, Heinz.- 1980. 58p.
Author(s): Bathke, Gustav-Wilhelm; Schreiber, J..- 1987. 137p.