G. T. · P.G. · P T · P. Thornhill
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Over Not Through: The Search for a Strong, Unified Culture for America's Airmen | 978-0-8330-7697-7 (0-8330-7697-3) | 2012 |
| The Crisis Within: America's Military and the Struggle Between the Overseas and Guardian Paradigms | 978-0-8330-9300-4 (0-8330-9300-2) | 2016 |