Articles (7)
| Title | Pages | Publication | Code | Date | Publisher | System (Setting) | |
|---|---|---|---|---|---|---|---|
 1930s Anthropology |  Chaosium Digest | v03n09 | Aug 1993 | Chaosium | Call of Cthulhu (Classic) | ||
| 1930s Archaeology | Chaosium Digest | v03n09 | Aug 1993 | Chaosium | Call of Cthulhu (Classic) | ||
| 1930s Astronomy | Chaosium Digest | v03n09 | Aug 1993 | Chaosium | Call of Cthulhu (Classic) | ||
| 1930s Chemistry | Chaosium Digest | v03n09 | Aug 1993 | Chaosium | Call of Cthulhu (Classic) | ||
| Boston | 12-26 |  The Unspeakable Oath | 16/17 | Mar 2001 | Pagan Publishing | Call of Cthulhu (Classic) | |
 A Method of Describing Mythos Books | Chaosium Digest | v02n07 | Jun 1993 | Chaosium | Call of Cthulhu (Classic) | ||
| Technology and Science of the Twenties and Thirties | 30-38 | The Unspeakable Oath | 16/17 | Mar 2001 | Pagan Publishing | Call of Cthulhu (Classic) |