American Academy of Political and Social Science, Philadelphia. (1923). The direct primary: J. T. Salter. The American Academy of Political and Social Science.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)American Academy of Political and Social Science, Philadelphia. The Direct Primary: J. T. Salter. Philadelphia: The American Academy of Political and Social Science, 1923.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)American Academy of Political and Social Science, Philadelphia. The Direct Primary: J. T. Salter. The American Academy of Political and Social Science, 1923.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.