Παραπομπή APA

Huybers, T. (2007). Tourism in developing countries. Edward Elgar Publishing.

Παραπομπή Chicago Style

Huybers, Twan. Tourism in Developing Countries. Cheltenham: Edward Elgar Publishing, 2007.

Παραπομπή MLA

Huybers, Twan. Tourism in Developing Countries. Edward Elgar Publishing, 2007.