توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Olsen, J. P. (2007). Europe in search of political order: An institutional perspective on unity/diversity, citizens/their helpers, democratic design/historical drift and the co-existence of orders. Oxford University Press.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Olsen, Johan P. Europe in Search of Political Order: An Institutional Perspective on Unity/diversity, Citizens/their Helpers, Democratic Design/historical Drift and the Co-existence of Orders. Oxford ; New York: Oxford University Press, 2007.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Olsen, Johan P. Europe in Search of Political Order: An Institutional Perspective on Unity/diversity, Citizens/their Helpers, Democratic Design/historical Drift and the Co-existence of Orders. Oxford University Press, 2007.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.