G L. · G. Leopold · George L. · George R. Leopold
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Calculated Risk: The Supersonic Life and Times of Gus Grissom | 978-1-55753-745-4 (1-55753-745-3) | 2016 |
| Calculated Risk: The Supersonic Life and Times of Gus Grissom, Revised and Expanded | 978-1-55753-829-1 (1-55753-829-8) | 2018 |