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Government in the classroom : dollars and power in education
Williams, Mary Frase, (1978)
The framework of your Wisconsin government. 6. ed
(1968)
Politische Sozialisation in entwickelten Industriegesellschaften : [Beiträge zur Internationale Fachtagung "Politische Sozialisation und politische Bildung" vom 10. bis 14. Oktober 1977 in Tutzing]
Behrmann, Günter C., (1979)
The Technique of theory construction
Woodger, Joseph Henry, (1939)
International encyclopedia of unified science
Bohr, Niels, (1938)
Encyclopedia and unified science
Neurath, Otto, (1938)