Cita APA (7a ed.)

Berelson, B. (1971). Content analysis in communication research. Hafner.

Cita Chicago Style (17a ed.)

Berelson, Bernard. Content Analysis in Communication Research. New York: Hafner, 1971.

Cita MLA (9a ed.)

Berelson, Bernard. Content Analysis in Communication Research. Hafner, 1971.