Burr, J. R. (1980). Philosophy and contemporary issues (3ª ed.). Macmillan.
芝加哥风格引文Burr, John R. Philosophy and Contemporary Issues. 3ª ed. Macmillan, 1980.
MLA引文Burr, John R. Philosophy and Contemporary Issues. 3ª ed. Macmillan, 1980.
警告：这些引文格式不一定是100％准确.