Heinlein's untitled answer to Earl Kemp's questionnaire was published April 15, 1960 in Who Killed Science Fiction. Heinlein requested anonymity, and his contribution was credited to Anonymous #1.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 2011 |
|
The Nonfiction of Robert Heinlein: Volume I | The Virginia Edition | Nonfiction | 395 |