APA-čujuhus (7. p.)
Weisshampel, S. (2008). The role of science fiction: Asimov & Vonnegut : a comparison. Diplom.de.
Chicago-čujuhus (17. p.)
Weisshampel, Stefan. The Role of Science Fiction: Asimov & Vonnegut : A Comparison. Hamburg: Diplom.de, 2008.
MLA-čujuhus (9. p.)
Weisshampel, Stefan. The Role of Science Fiction: Asimov & Vonnegut : A Comparison. Diplom.de, 2008.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.