Hits 21-30 within 59 documents
Hits 21-30 within 59 documents
Author(s): Mehlhorn, Hans-Georg.- 1972. 13p.
Author(s): Müller, Harry; Schedlich, Heinz.- 1970. 32p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1972. 26p.
Author(s): Hoffmann, Achim.- 1972. 22p.
Author(s): Hopfer, R.; Schneider, E..- 1970. 19p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1972. 18p.
Author(s): Kaftan, Burkhard.- 1971. 26p.
Author(s): Neise, Ulrich; David, Wolfgang.- 1972. 17p.
Author(s): Künzel, Monika; Stiehler, Hans-Jörg.- 1981. 19p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1970