Catt, H. D. (1989). What do voters decide?: Tactical voting and associated problems in British politics. London School of Economics and Political Science.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Catt, Helena Dee. What Do Voters Decide?: Tactical Voting and Associated Problems in British Politics. London: London School of Economics and Political Science, 1989.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Catt, Helena Dee. What Do Voters Decide?: Tactical Voting and Associated Problems in British Politics. London School of Economics and Political Science, 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.