Introduction (12 Great Classics of Science Fiction)
| First published | December 1963 |
|---|---|
| Type | Essay |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| December 1963 |
|
12 Great Classics of Science Fiction | Gold Medal Books | Anthology | 5 |
| May 1966 |
|
12 Great Classics of Science Fiction | Fawcett Gold Medal | Anthology | 5 |
| February 1970 |
|
12 Great Classics of Science Fiction | Fawcett Gold Medal | Anthology | 5 |