Philippines. National Statistics Office. (1990). 1990 census of population and housing: Population by city, municipality, and barangay. NSO.
Cytowanie według stylu Chicago (wyd. 17)Philippines. National Statistics Office. 1990 Census of Population and Housing: Population by City, Municipality, and Barangay. Manila: NSO, 1990.
Cytowanie według stylu MLA (wyd. 9)Philippines. National Statistics Office. 1990 Census of Population and Housing: Population by City, Municipality, and Barangay. NSO, 1990.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..