Hits 81-86 within 86 documents
Hits 81-86 within 86 documents
Author(s): Mehlhorn, Hans-Georg.- 1979. 58p.
Author(s): Winkler, Klaus.- 1979. 32p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1979. 30p.
Author(s): Förster, Peter.- 1976. 77p.
Author(s): Gerth, Werner.- 1970. 43p.
Author(s): Wiedemann, Dieter.- 1978