Pestoff, V. A. (1977). Voluntary associations and Nordic party systems: A study of overlapping memberships and cross-pressures in Finland, Norway, and Sweden. University of Stockholm, Dept. of Political Science.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Pestoff, Victor Alexis. Voluntary Associations and Nordic Party Systems: A Study of Overlapping Memberships and Cross-pressures in Finland, Norway, and Sweden. Stockholm: University of Stockholm, Dept. of Political Science, 1977.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Pestoff, Victor Alexis. Voluntary Associations and Nordic Party Systems: A Study of Overlapping Memberships and Cross-pressures in Finland, Norway, and Sweden. University of Stockholm, Dept. of Political Science, 1977.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.