Powell, L. W. (2012). The influence of campaign contributions in state legislatures: The effects of institutions and politics. University of Michigan Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Powell, Lynda W. The Influence of Campaign Contributions in State Legislatures: The Effects of Institutions and Politics. Ann Arbor: University of Michigan Press, 2012.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Powell, Lynda W. The Influence of Campaign Contributions in State Legislatures: The Effects of Institutions and Politics. University of Michigan Press, 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.