Παραπομπή APA

Olsen, D. H. E., & Timothy, D. J. E. (2006). Tourism, religion and spiritual journeys.

Παραπομπή Chicago Style

Olsen, Daniel H; Editor, και Dallen J; Editor Timothy. Tourism, Religion and Spiritual Journeys. New York, Routledge, 2006.

Παραπομπή MLA

Olsen, Daniel H; Editor, και Dallen J; Editor Timothy. Tourism, Religion and Spiritual Journeys. 2006.