Hits 1-6 within 6 documents
Hits 1-6 within 6 documents
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1988. 68p.
Author(s): Schubarth, Wilfried.- 1989. 26p.
Author(s): Lange, Günter; Dennhardt, Rudolf; Schubarth, Wilfried.- 1989. 64p.
Author(s): Schubarth, Wilfried.- 1987. 43p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1987. 25p.
Author(s): Schubarth, Wilfried.- 1989. 116p.