| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| September 1952 |
|
Across the Space Frontier | The Viking Press | Nonfiction | xi |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| September 1952 |
|
Across the Space Frontier | The Viking Press | Nonfiction | xi |