APA (7e ed.) Bronvermelding

Valino, A. (1999). A cement firm committed to clean environment. Manila Bulletin.

Chicago (17e ed.) Bronvermelding

Valino, Amada. "A Cement Firm Committed to Clean Environment." Manila Bulletin 1999.

MLA (9e ed.) Bronvermelding

Valino, Amada. "A Cement Firm Committed to Clean Environment." Manila Bulletin, 1999.

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