W. Scharpf Fritz. (1991). Crisis and Choice in European Social Democraycy (In lần thứ 1.). London: Cornell University Press.
Chicago Style aipamenaW. Scharpf Fritz. Crisis and Choice in European Social Democraycy. In lần thứ 1. London: Cornell University Press, 1991.
MLA aipamenaW. Scharpf Fritz. Crisis and Choice in European Social Democraycy. In lần thứ 1. London: Cornell University Press, 1991.
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