APA (7th ed.) Citation

Benedikt, X. (2009). World Day of Peace message 2010: If you want to cultivate peace, protect creation. Origins, 39, 478-482.

Chicago Style (17th ed.) Citation

Benedikt, XVI. "World Day of Peace Message 2010: If You Want to Cultivate Peace, Protect Creation." Origins 39 (2009): 478-482.

MLA (8th ed.) Citation

Benedikt, XVI. "World Day of Peace Message 2010: If You Want to Cultivate Peace, Protect Creation." Origins, vol. 39, 2009, pp. 478-482.

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