Ships for Manned Spaceflight
| First published | October 1974 |
|---|---|
| Type | Essay |
| Series | A Step Farther Out |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| October 1974 |
|
Galaxy, October 1974 | UPD Publishing Corporation | MAGAZINE | 110 |
| October 1974 |
|
Galaxy Science Fiction Magazine, October 1974 | Universal-Tandem Publishing Company Ltd. | MAGAZINE | 110 |
| September 1979 |
|
A Step Farther Out | Ace Books | Nonfiction | 219 |
| July 1980 |
|
A Step Farther Out | W. H. Allen | Nonfiction | |
| August 1980 |
|
A Step Farther Out | Ace Books | Nonfiction | 219 |
| March 1984 |
|
A Step Farther Out | Ace Books | Nonfiction | 219 |