| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Delivering Excellent Service Quality in Aviation: A Practical Guide for Internal and External Service Providers | Paperback | 978-1-138-26256-0 (1-138-26256-0) | 2016 |
| Delivering Excellent Service Quality in Aviation: A Practical Guide for Internal and External Service Providers | Hardcover | 978-0-7546-4725-6 (0-7546-4725-0) | 2006 |
| Requirements Management: How to Ensure You Achieve What You Need from Your Projects | " | 978-1-4094-5137-2 (1-4094-5137-2) | 2013 |