Hits 1-10 within 30 documents
Hits 1-10 within 30 documents
Author(s): Friedrich, Walter.- 1974. 27p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1970. 99p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1972. 82p.
Author(s): Müller, Harry; Schedlich, Heinz.- 1970. 32p.
Author(s): Hopfer, R.; Schneider, E..- 1970. 19p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1973. 8p.
Author(s): Hopfer, R.; Wolf, A..- 1970. 26p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1976. 64p.
Author(s): Gerth, Werner.- 1975. 10p.