Hits 1-7 within 7 documents
Hits 1-7 within 7 documents
Author(s): Gerth, Werner; Burkhardt, Erwin; Bernard, Günter; Bertram, Barbara; Bonus, Hans; Heinrichs, W.; Höpfner, E..- 1970. 62p.
Author(s): Ronneberg, Heinz.- 1976. 54p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1979. 17p.
Author(s): Carl, Christine.- 1979. 27p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1974. 28p.
Author(s): Voß, Peter.- 1975. 21p.