International Ecumenical Congress of Theology São Paulo, Brazil, Torres, S., Eagleson, J., & Drury, J. (1981). The challenge of basic Christian communities: Papers from the International Ecumenical Congress of Theology, February 20-March 2, 1980, São Paulo, Brazil. Orbis Books.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Ecumenical Congress of Theology São Paulo, Brazil, Sergio Torres, John Eagleson, و John Drury. The Challenge of Basic Christian Communities: Papers from the International Ecumenical Congress of Theology, February 20-March 2, 1980, São Paulo, Brazil. Maryknoll, New York: Orbis Books, 1981.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Ecumenical Congress of Theology São Paulo, Brazil, et al. The Challenge of Basic Christian Communities: Papers from the International Ecumenical Congress of Theology, February 20-March 2, 1980, São Paulo, Brazil. Orbis Books, 1981.