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Dyfyniad Arddull ChicagoLandau, Martin. Political Theory and Political Science: Studies in the Methodology of Political Inquiry. [Atlantic Highlands] N.J: Humanities Press, 1979.
Dyfyniad MLALandau, Martin. Political Theory and Political Science: Studies in the Methodology of Political Inquiry. Humanities Press, 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.