توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Siebert, F. S., Peterson, T., & Schramm, W. (1963). Four theories of the press: The authoritarian, libertarian, social responsibility and soviet communist concepts of what the press should be and do. University of Illinois Press.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Siebert, Fred S., Theodore Peterson, و Wilbur Schramm. Four Theories of the Press: The Authoritarian, Libertarian, Social Responsibility and Soviet Communist Concepts of What the Press Should Be and Do. Urbana: University of Illinois Press, 1963.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Siebert, Fred S., et al. Four Theories of the Press: The Authoritarian, Libertarian, Social Responsibility and Soviet Communist Concepts of What the Press Should Be and Do. University of Illinois Press, 1963.