| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1966 |
|
Collected Editorials from Analog | Doubleday | Nonfiction | 61 |
| February 1977 |
|
Turning Points: Essays on the Art of Science Fiction | Harper & Row | Nonfiction | 171 |
| May 2014 |
|
Turning Points: Essays on the Art of Science Fiction | Gateway / Orion | Nonfiction |