APA (7e ed.) Bronvermelding

Philippines. National Statistics Office. (1988). Philippine energy statistics. The Office.

Chicago (17e ed.) Bronvermelding

Philippines. National Statistics Office. Philippine Energy Statistics. Manila: The Office, 1988.

MLA (9e ed.) Bronvermelding

Philippines. National Statistics Office. Philippine Energy Statistics. The Office, 1988.

Let op: Deze citaties zijn niet altijd 100% accuraat.