First published in the first-edition hardcover The Past Through Tomorrow, G. P. Putnam's Sons, 1967.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| February 2010 |
|
The Future History of Robert Heinlein: Volume II | The Virginia Edition | Collection | vi |
| December 2011 |
|
Methuselah's Children | Spectrum Literary Agency | Novel | |1 |
| November 2013 |
|
Revolt in 2100 | Spectrum Literary Agency | Collection | |1 |