Hits 1-6 within 6 documents
Hits 1-6 within 6 documents
Author(s): Thyrolf, Monika.- 1970. 46p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1971. 51p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1976. 24p.
Author(s): Mühlhausen, Aribert; Neise, Ulrich.- 1971. 62p.
Editor(s): Zentralinstitut für Jugendforschung (ZIJ).- 1979. 24p.
Author(s): Gerth, Werner.- 1970. 43p.