1
Book
2
3
Book
4
5
Published: Frankfurt/M. : Beltz, 1980
Book
6
Book
7
by Noelle-Neumann, Elisabeth, 1916-2010 1916-2010
Published: Allensbach : Inst. für Demoskopie, 1984
Published: Allensbach : Inst. für Demoskopie, 1984
Book
8
9
10
11
Published: München : Pressedienst Demokratische Initiative, [1979]
Book
12
Book
13