Cita APA (7th ed.)

Weber, R. P. (1990). Basic content analysis (2nd ed.). Sage Publications.

Cita Chicago (17th ed.)

Weber, Robert Philip. Basic Content Analysis. 2nd ed. Newbury Park, Calif: Sage Publications, 1990.

Cita MLA (9th ed.)

Weber, Robert Philip. Basic Content Analysis. 2nd ed. Sage Publications, 1990.