Introduction (The Seven Cardinal Virtues of Science Fiction)
| First published | September 1981 |
|---|---|
| Type | Essay |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| September 1981 |
|
The Seven Cardinal Virtues of Science Fiction | Fawcett Crest | Anthology | 9 |
| 1982 |
|
The Seven Deadly Sins and Cardinal Virtues of Science Fiction | Bonanza Books / Crown Publishers | Omnibus | 9|2.009 |