- Author: Hartmut Schröder (editor)
- Language: English
- Year: 1991
- Author: Uta M. Quasthoff (editor)
- Language: English
- Year: 1995
- Author: Gert Rickheit (editor), Christopher Habel (editor)
- Language: English
- Year: 1995
- Author: Roger G. van de Velde
- Language: English
- Year: 1992
- Author: Stein Rokkan (editor), Sidney Verba (editor), Jean Viet (editor), Elina Almasy (editor)
- Language: English
- Year: 1969
- Author: G. S. Litvinchuk (editor), I. M. Spitkovskii (editor), Georg Heinig (editor), Bernd Luderer (editor), Bernd Silbermann (editor)
- Language: English
- Year: 1988
