The Reference Library (Analog, April 1969)
| First published | April 1969 |
|---|---|
| Type | Essay |
| Series | The Reference Library |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| April 1969 |
|
Analog Science Fiction/Science Fact, April 1969 | Condé Nast | MAGAZINE | 160 |