APA (7e ed.) Bronvermelding

Estupigan, R. (1999). Philippine tourism industry on the uprising. Manila Bulletin.

Chicago (17e ed.) Bronvermelding

Estupigan, Ruth. "Philippine Tourism Industry on the Uprising." Manila Bulletin 1999.

MLA (9e ed.) Bronvermelding

Estupigan, Ruth. "Philippine Tourism Industry on the Uprising." Manila Bulletin, 1999.

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