International Institute of Administrative Sciences. German Section, Keonig, K., Oertzen, H. J. v., & Wagener, F. (1983). Public administration in the Federal Republic of Germany. Kluwer-Deventer/The Netherlands.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Institute of Administrative Sciences. German Section, Klaus Keonig, Hans Joachim von Oertzen, و Frido Wagener. Public Administration in the Federal Republic of Germany. Antwerp: Kluwer-Deventer/The Netherlands, 1983.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Institute of Administrative Sciences. German Section, et al. Public Administration in the Federal Republic of Germany. Kluwer-Deventer/The Netherlands, 1983.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.