Duverger, M. (1966). An introduction to the social sciences. Frederick A.Praeger.
Lua i Stíl Chicago (17ú heag.)Duverger, Maurice. An Introduction to the Social Sciences. New York: Frederick A.Praeger, 1966.
Lua MLA (9ú heag.)Duverger, Maurice. An Introduction to the Social Sciences. Frederick A.Praeger, 1966.
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