APA (7th ed.) Citation

Juan Pablo II, P., Mari, A., & Bernardin, J. (1987). Pope John Paul II, pilgrim of peace. Harmony Books.

Chicago Style (17th ed.) Citation

Juan Pablo II, Papa, Arturo Mari, and Joseph Bernardin. Pope John Paul II, Pilgrim of Peace. New York: Harmony Books, 1987.

MLA (9th ed.) Citation

Juan Pablo II, Papa, et al. Pope John Paul II, Pilgrim of Peace. Harmony Books, 1987.