Morallos, C. P. (2003). Watchman of our borders: A brief history of the centennial of the Philippine Bureau of Customs 1902-2002. Penpower News Agency.
Chicago-Zitierstil (17. Ausg.)Morallos, Chando P. Watchman of Our Borders: A Brief History of the Centennial of the Philippine Bureau of Customs 1902-2002. Manila: Penpower News Agency, 2003.
MLA-Zitierstil (9. Ausg.)Morallos, Chando P. Watchman of Our Borders: A Brief History of the Centennial of the Philippine Bureau of Customs 1902-2002. Penpower News Agency, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.