Catholic Church. Pope (1978-2005 : John Paul II). (1982). Letter of his holiness, Pope John Paul II, to the General Assembly of the United Nations: Negotiation, the only realistic solution to the continuing threat of war (English ed.). St. Paul Editions.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Catholic Church. Pope (1978-2005 : John Paul II). Letter of His Holiness, Pope John Paul II, to the General Assembly of the United Nations: Negotiation, the Only Realistic Solution to the Continuing Threat of War. English ed. Boston, MA: St. Paul Editions, 1982.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Catholic Church. Pope (1978-2005 : John Paul II). Letter of His Holiness, Pope John Paul II, to the General Assembly of the United Nations: Negotiation, the Only Realistic Solution to the Continuing Threat of War. English ed. St. Paul Editions, 1982.