Riga, P. (1966). John XXIII and the city of man. Newman Press.
芝加哥风格引文Riga, Peter. John XXIII and the City of Man. Westminster, Md: Newman Press, 1966.
MLA引文Riga, Peter. John XXIII and the City of Man. Newman Press, 1966.
警告：这些引文格式不一定是100％准确.
APA引文