Titus, H. H. (1970). Living issues in philosophy: An introductory textbook (5th ed.). Van Nostrand Reinhold.
芝加哥风格引文Titus, Harold H. Living Issues in Philosophy: An Introductory Textbook. 5th ed. New York: Van Nostrand Reinhold, 1970.
MLA引文Titus, Harold H. Living Issues in Philosophy: An Introductory Textbook. 5th ed. Van Nostrand Reinhold, 1970.
警告：这些引文格式不一定是100％准确.