Franziskus, P. (2018). Apostolic Letter, "motu proprio, Learn to take your leave," Governing the resignation for reasons of age of holders of certain offices subject to papal appointment. Canon Law Society newsletter, 192, 86-88.
Chicago Style (17th ed.) CitationFranziskus, Papst. "Apostolic Letter, "Motu Proprio, Learn to Take Your Leave," Governing the Resignation for Reasons of Age of Holders of Certain Offices Subject to Papal Appointment." Canon Law Society Newsletter 192 (2018): 86-88.
MLA (8th ed.) CitationFranziskus, Papst. "Apostolic Letter, "Motu Proprio, Learn to Take Your Leave," Governing the Resignation for Reasons of Age of Holders of Certain Offices Subject to Papal Appointment." Canon Law Society Newsletter, vol. 192, 2018, pp. 86-88.
Warning: These citations may not always be 100% accurate.