John Paul II, McPhee, J. T., McPhee, M. T., & Messori, V. E. (1994). Crossing the threshold of hope.
Chicago Style aipamenaJohn Paul II, Jenny; Tr McPhee, Martha; Tr McPhee, and Vittorio; Ed Messori. Crossing the Threshold of Hope. London, Jonathan Cape, 1994.
MLA aipamenaJohn Paul II, et al. Crossing the Threshold of Hope. 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.