توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Akkerman, T. Populist parties in power and their impact on liberal democracies in Western Europe. Political Populism : a handbook.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Akkerman, Tjitske. "Populist Parties in Power and Their Impact on Liberal Democracies in Western Europe." Political Populism : A Handbook .

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Akkerman, Tjitske. "Populist Parties in Power and Their Impact on Liberal Democracies in Western Europe." Political Populism : A Handbook, .