Publications (5)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| April 1994 | The Magazine of Fantasy & Science Fiction, April 1994 | Mercury Press, Inc. | MAGAZINE | 113 |
| February 1999 | Deep Time: How Humanity Communicates Across Millennia | Bard / Avon Books | Nonfiction | |
| December 2000 | Deep Time: How Humanity Communicates Across Millennia | Perennial / HarperCollins | Nonfiction | |
| January 2017 | Galaxy's Edge, Issue 24: January 2017 | Arc Manor/Phoenix Pick | MAGAZINE | 68 |
| January 2017 | Galaxy's Edge, Issue 24: January 2017 | Arc Manor/Phoenix Pick | MAGAZINE | |68 |