Styx and Stones; and Maybe Charon Too
| First published | November 1973 |
|---|---|
| Type | Essay |
| Series | Science Fact (Analog) |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| November 1973 |
|
Analog Science Fiction/Science Fact, November 1973 | Condé Nast | MAGAZINE | 64 |
| May 1977 |
|
Closeup: New Worlds | St. Martin's Press | Nonfiction | 175 |
| July 1977 |
|
Closeup: New Worlds | St. Martin's Press / SFBC | Nonfiction |