The Thirty-First Floor
| First published | 1967 |
|---|---|
| Publisher | Alfred A. Knopf |
| Format | Hardcover |
| Type | Novel |
| Cover art | George Salter |
| Pages | 207 |
| Price | $4.95 |
{{Tr|Joan Tate}}
First American edition.
Translated from the Swedish by Joan Tate.
Month of publication from The Whole Science Fiction Data Base No.5.
| Year | Reviewer | Publication |
|---|---|---|
| 1967 | Judith Merril | The Magazine of Fantasy and Science Fiction, August 1967 |
| 1967 | P. Schuyler Miller | Analog Science Fiction -> Science Fact, December 1967 |