Cita APA (7th ed.)

Africa, T. P. (1998). How credible are opinion polls. IN Today's mail [column]. Today.

Cita Chicago (17th ed.)

Africa, Tomas P. "How Credible Are Opinion Polls. IN Today's Mail [column]." Today 1998.

Cita MLA (9th ed.)

Africa, Tomas P. "How Credible Are Opinion Polls. IN Today's Mail [column]." Today, 1998.