Direct Contact Among Galactic Civilizations
| First published | 1966 |
|---|---|
| Type | Essay |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1966 |
|
Intelligent Life in the Universe | Holden-Day | Nonfiction | 438 |
| 1973 |
|
Survival Printout | Vintage Books | Anthology | 241 |