Cita APA (7th ed.)

Lavrakas, P. J., & Holley, J. K. (1991). Polling and presidential election coverage. Sage Publications.

Cita Chicago (17th ed.)

Lavrakas, Paul J., i Jack K. Holley. Polling and Presidential Election Coverage. Newbury Park, Calif.: Sage Publications, 1991.

Cita MLA (8th ed.)

Lavrakas, Paul J., i Jack K. Holley. Polling and Presidential Election Coverage. Sage Publications, 1991.