Cita APA (7a ed.)

Karolak, T., & Evans, D. (1979). John Paul II, the Pope from Poland. Interpress.

Cita Chicago Style (17a ed.)

Karolak, Tadeusz, y David Evans. John Paul II, the Pope from Poland. Warsaw: Interpress, 1979.

Cita MLA (9a ed.)

Karolak, Tadeusz, y David Evans. John Paul II, the Pope from Poland. Interpress, 1979.