Howie, L. (2014). Security Guards and Counter-terrorism: Tourism and Gaps in Terrorism Prevention. The international journal of religious tourism and pilgrimage.
Chicago-Zitierstil (17. Ausg.)Howie, Luke. "Security Guards and Counter-terrorism: Tourism and Gaps in Terrorism Prevention." The International Journal of Religious Tourism and Pilgrimage 2014.
MLA-Zitierstil (9. Ausg.)Howie, Luke. "Security Guards and Counter-terrorism: Tourism and Gaps in Terrorism Prevention." The International Journal of Religious Tourism and Pilgrimage, 2014.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.