Philippines. National Statistics Office. (1990). 1990 census of population and housing: Population by city, municipality, and barangay. NSO.
Chicago-Zitierstil (17. Ausg.)Philippines. National Statistics Office. 1990 Census of Population and Housing: Population by City, Municipality, and Barangay. Manila: NSO, 1990.
MLA-Zitierstil (9. Ausg.)Philippines. National Statistics Office. 1990 Census of Population and Housing: Population by City, Municipality, and Barangay. NSO, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.