ebrary, Inc, Cline, K., & Zullo, H. (2011). Teaching mathematics with classroom voting: With and without clickers. Mathematical Association of America.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ebrary, Inc, Kelly Cline, و Holly Zullo. Teaching Mathematics with Classroom Voting: With and Without Clickers. Washington, D.C.: Mathematical Association of America, 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)ebrary, Inc, et al. Teaching Mathematics with Classroom Voting: With and Without Clickers. Mathematical Association of America, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.