Titles marked by user Invisible Trihedron with tag politeness
| Date | Type | Language | Title | Authors | Parent Title | Parent Authors | Tags |
|---|---|---|---|---|---|---|---|
| 1971-08-00 | SHORTFICTION | English | A Little Knowledge | Poul Anderson | helium (1), interstellar travel (1), aliens (1), science fiction (1), politeness (1) |