Cita APA (7a ed.)

Hulteng, J. L., & Nelson, R. P. (1971). The fourth estate: An informal appraisal of the news and opinion media. Harper & Row.

Cita Chicago Style (17a ed.)

Hulteng, John L., y Roy Paul Nelson. The Fourth Estate: An Informal Appraisal of the News and Opinion Media. New York: Harper & Row, 1971.

Cita MLA (9a ed.)

Hulteng, John L., y Roy Paul Nelson. The Fourth Estate: An Informal Appraisal of the News and Opinion Media. Harper & Row, 1971.