Hits 21-30 within 66 documents
Hits 21-30 within 66 documents
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1977. 95p.
Author(s): Pfeiffer, U.; Ulbrich, H.-J..- 1975. 20p.
Author(s): Voß, Peter.- 1975. 41p.
Author(s): Hanowski, M.; Herzog, Hans; Schulze, H..- 1975. 40p.
Author(s): Ulbrich, H.-J..- 1975. 20p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1976. 49p.
Author(s): Hahn, Jochen.- 1978. 44p.
Author(s): Kasek, Leonhard; Schauer, Heinz; Hoffmann, A.; Starke, Kurt.- 1975. 183p.
Author(s): Müller, Harry.- 1978. 58p.