Παραπομπή σε μορφή APA (7η εκδ.)

Ashworth, G. J., & Tunbridge, J. E. (2000). The tourist-historic city: Retrospect and prospect of managing the heritage city. Pergamon.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ashworth, G. J., και J. E. Tunbridge. The Tourist-historic City: Retrospect and Prospect of Managing the Heritage City. Amsterdam: Pergamon, 2000.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ashworth, G. J., και J. E. Tunbridge. The Tourist-historic City: Retrospect and Prospect of Managing the Heritage City. Pergamon, 2000.