| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| June 1968 |
|
Analog Science Fiction -> Science Fact, June 1968 | Condé Nast | MAGAZINE | 167|167.1 |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| June 1968 |
|
Analog Science Fiction -> Science Fact, June 1968 | Condé Nast | MAGAZINE | 167|167.1 |