Hits 21-30 within 40 documents
Hits 21-30 within 40 documents
Author(s): Kasek, Leonhard.- 1979. 7p.
Author(s): Geier, Wolfgang; Ulrich, Gisela; Heinicke, Hans.- 1979. 64p.
Author(s): Friedrich, Walter.- 1979. 5p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1979. 24p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1979. 34p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1979. 64p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1979. 89p.
Author(s): Geier, Wolfgang.- 1979. 72p.
Author(s): Förster, Peter; Schulze, Harri.- 1979. 93p.
Author(s): Gerth, Werner; Ronneberg, Heinz.- 1979. 25p.