APA (7e ed.) Bronvermelding

Philippines (Republic). Congress. (1970). Local government directory: Province of Sulu. The Commission.

Chicago (17e ed.) Bronvermelding

Philippines (Republic). Congress. Local Government Directory: Province of Sulu. Manila: The Commission, 1970.

MLA (9e ed.) Bronvermelding

Philippines (Republic). Congress. Local Government Directory: Province of Sulu. The Commission, 1970.

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