APA (7e ed.) Bronvermelding

Caoili, C. S. (1997). Scientists say red tide good source of pharmaceutical drugs. Manila Bulletin.

Chicago (17e ed.) Bronvermelding

Caoili, Carayo S. "Scientists Say Red Tide Good Source of Pharmaceutical Drugs." Manila Bulletin 1997.

MLA (9e ed.) Bronvermelding

Caoili, Carayo S. "Scientists Say Red Tide Good Source of Pharmaceutical Drugs." Manila Bulletin, 1997.