Hits 1-3 within 3 documents
Hits 1-3 within 3 documents
Author(s): Krauth, Cornelia.- 1983. 15,2p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1983. 39p.
Author(s): Hagstotz, Werner; Kirschner, Hans-Peter; Porst, Rolf; Prüfer, Peter.- 1983. 37p.