Cita APA (7th ed.)

John Paul II, P. (1979). John Paul II in Mexico: His collected speeches. Collins.

Cita Chicago (17th ed.)

John Paul II, Pope. John Paul II in Mexico: His Collected Speeches. London [etc.]: Collins, 1979.

Cita MLA (8th ed.)

John Paul II, Pope. John Paul II in Mexico: His Collected Speeches. Collins, 1979.