1
2
3
Published: London [u.a.] : Croom Helm, 1986
Book
4
5
Published: München : Buchendorfer Verl, 1993
Book
6
7
8
Published: London [u.a.] : Croom Helm [u.a.], 1983
Book
9
10
11
12
Published: New York [u.a.] : New Viewpoints, 1972
Book
13
14
Published: Leipzig : Barth, 1938
Book
15
Published: Wiesbaden : Hessische Landeszentrale für Politische Bildung, 1990
Book
16
17
18
19
20
Published: München [u.a.] : Piper, 1992
Book