- Author: Stein Rokkan (editor)
- Language: English
- Year: 1968
- Author: Albert Somit (editor)
- Language: English
- Year: 1976
- Author: Walter Müller (editor), Karl Ulrich Mayer (editor)
- Language: English
- Year: 1973
- Author: Otto Klineberg
- Language: English
- Year: 1976
- Author: Susanne Petra Schad
- Language: English
- Year: 1972
- Author: Solange Petit, Jean Stoetzel
- Language: French
- Year: 1975