Παραπομπή σε μορφή APA (7η εκδ.)

Siebert, F. S., Peterson, T., & Schramm, W. (2000). Four theories of the press: The authoritarian, libertarian, social responsibility and soviet communist concepts of what the press should be and do. Ayer Company Pub.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Siebert, Fred S., Theodore Peterson, και Wilbur Schramm. Four Theories of the Press: The Authoritarian, Libertarian, Social Responsibility and Soviet Communist Concepts of What the Press Should Be and Do. N. Stratford, NH: Ayer Company Pub, 2000.

Παραπομπή σε μορφή MLA (9th εκδ.)

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. Ayer Company Pub, 2000.