Bloomberg & Philippine News Agency. (2021). PH boosts patrols in disputed sea. Manila Bulletin.
Cita Chicago (17th ed.)Bloomberg i Philippine News Agency. "PH Boosts Patrols in Disputed Sea." Manila Bulletin 2021.
Cita MLA (9th ed.)Bloomberg i Philippine News Agency. "PH Boosts Patrols in Disputed Sea." Manila Bulletin, 2021.
Atenció: Aquestes cites poden no estar 100% correctes.