Kingsley, R. (1923). Recent variations from the two-party system as evidenced by the Nonpartisan League and the agricultural bloc.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Kingsley, Robert. Recent Variations from the Two-party System as Evidenced by the Nonpartisan League and the Agricultural Bloc. 1923.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Kingsley, Robert. Recent Variations from the Two-party System as Evidenced by the Nonpartisan League and the Agricultural Bloc. 1923.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.