Παραπομπή σε μορφή APA (7η εκδ.)

Kossmann, M. (2006). Delivering excellent service quality in aviation: A practical guide for internal and external service providers. Ashgate.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Kossmann, Mario. Delivering Excellent Service Quality in Aviation: A Practical Guide for Internal and External Service Providers. Aldershot, England: Ashgate, 2006.

Παραπομπή σε μορφή MLA (9th εκδ.)

Kossmann, Mario. Delivering Excellent Service Quality in Aviation: A Practical Guide for Internal and External Service Providers. Ashgate, 2006.