Higher Centers
| First published | April 1971 |
|---|---|
| Type | Short Fiction |
| Length | Short Story |
| Series | LaNague Federation |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| April 1971 |
|
Analog Science Fiction/Science Fact, April 1971 | Condé Nast | MAGAZINE | 149 |
| November 2005 |
|
Wheels Within Wheels | Infrapress | Novel | 187 |