Methoden, Daten, Analysen | GESIS - Leibniz-Institute for the Social Sciences, Mannheim. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Methoden, Daten, Analysen | GESIS - Leibniz-Institute for the Social Sciences, Mannheim. Cambridge University Press.
Lua MLA (8ú heag.)Methoden, Daten, Analysen | GESIS - Leibniz-Institute for the Social Sciences, Mannheim. Cambridge University Press.
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