An Index to Unknown and Unknown Worlds by Author and by Title
| First published | 1955 |
|---|---|
| Publisher | Sirius Press |
| Format | Pamphlet |
| Type | Nonfiction |
| Pages | [ii]+34 |
| Price | $1.00 |
- Comb binding. Covers are heavy-duty cardstock. Interior pages are book paper. One-page addenda issued showing name changes to the magazine.
- The index by title also gives the locale of each story as well as the principal characters.
- Cover art is uncredited and there is no visible signature.
| Year | Reviewer | Publication |
|---|---|---|
| 1955 | P. Schuyler Miller | Astounding Science Fiction, March 1956 |
| 1956 | Anthony Boucher | The Magazine of Fantasy and Science Fiction, January 1956 |
No ISBN on record — searching by title and author.