Duncan, E. H. (1979). Soren kierkegaard with an additional chapte. Word Book Publishers.
芝加哥风格引文Duncan, Elmer H. Soren Kierkegaard with an Additional Chapte. Word Book Publishers, 1979.
MLA引文Duncan, Elmer H. Soren Kierkegaard with an Additional Chapte. Word Book Publishers, 1979.
警告：这些引文格式不一定是100％准确.