| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| 639th Aero Squadron Book, Being a Record of the Squadron's Activities, with Brief Biographical Sketches of Its Members. Organized September, | 978-1-152-8537O-6 (1-152-8537O-8) | 2010 |
s. a. · u.a. · U. S. · U.S.A. · U.S. Army · United States · United States Army