Hits 21-24 within 24 documents
Hits 21-24 within 24 documents
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1977. 62p.
Author(s): Kaftan, Burkhard; Gerth, Werner; Bertram, Barbara; Ronneberg, Heinz; Kaftan, Burkhard; Netzker, Wolfgang; Fischer, Axel.- 1977. 100p.
Author(s): Wiedemann, Dieter.- 1977. 58p.