Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service) & Papathanassis, A. (2011). The Long Tail of Tourism: Holiday Niches and their Impact on Mainstream Tourism. Gabler.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service) και Alexis Papathanassis. The Long Tail of Tourism: Holiday Niches and Their Impact on Mainstream Tourism. Wiesbaden: Gabler, 2011.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service) και Alexis Papathanassis. The Long Tail of Tourism: Holiday Niches and Their Impact on Mainstream Tourism. Gabler, 2011.