| Titel | ISBN-13 (ISBN-10) | Erscheinungsjahr |
|---|---|---|
| Assessing English Language Proficiency in International Aviation: Issues of Reliability, Validity, and Aviation Safety | 978-3-639-1O984-9 (3-639-1O984-8) | 2009 |
Reggie Yemma · Rick Yan · Rick Yohn · Rocco Yim · Ruixi Yuan