APA (7th ed.) Citation

Johannes Paulus II. (2004). The great challenges facing humanity today: Annual address to the diplomatic corps accredited to the Vatican, January 10, 2005. Origins, 34, 497-500.

Chicago Style (17th ed.) Citation

Johannes Paulus II. "The Great Challenges Facing Humanity Today: Annual Address to the Diplomatic Corps Accredited to the Vatican, January 10, 2005." Origins 34 (2004): 497-500.

MLA (9th ed.) Citation

Johannes Paulus II. "The Great Challenges Facing Humanity Today: Annual Address to the Diplomatic Corps Accredited to the Vatican, January 10, 2005." Origins, vol. 34, 2004, pp. 497-500.

Warning: These citations may not always be 100% accurate.