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Invisible Trihedron (1)Titles Marked With This Tag:
| Date | Type | Language | Title | Authors | Parent Title | Parent Authors | Tags |
|---|---|---|---|---|---|---|---|
| 1945-06-00 | SHORTFICTION | English | The Ethical Equations | Murray Leinster | science fiction (1), interplanetary travel (1), first contact (1), mathematics (1), ethics (1), nitrogen (1), isotopes (1), NESFA Core Reading List (1) |