Fredim, E. S. (1980). The Dynamics of communication and information in groups: The impact of two-way cabel television in organizations. University of Michigan.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Fredim, Eric Starin. The Dynamics of Communication and Information in Groups: The Impact of Two-way Cabel Television in Organizations. Ann Arbor: University of Michigan, 1980.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Fredim, Eric Starin. The Dynamics of Communication and Information in Groups: The Impact of Two-way Cabel Television in Organizations. University of Michigan, 1980.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.