Weisshampel, S. (2008). The role of science fiction: Asimov & Vonnegut : a comparison. Diplom.de.
芝加哥风格引文Weisshampel, Stefan. The Role of Science Fiction: Asimov & Vonnegut : A Comparison. Hamburg: Diplom.de, 2008.
MLA引文Weisshampel, Stefan. The Role of Science Fiction: Asimov & Vonnegut : A Comparison. Diplom.de, 2008.
警告：这些引文格式不一定是100％准确.