Datol, C. A. (2011). Follow faith to the North: Four days and three nights on a pilgrimage tour across Luzon. Cruising.
Chicago-referens (17:e uppl.)Datol, Christopher A. "Follow Faith to the North: Four Days and Three Nights on a Pilgrimage Tour Across Luzon." Cruising 2011.
MLA-referens (9:e uppl.)Datol, Christopher A. "Follow Faith to the North: Four Days and Three Nights on a Pilgrimage Tour Across Luzon." Cruising, 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.