(2007). SBMA adopts Filipino invention for oil recovery to protect marine area. Manila Bulletin.
Cita Chicago (17th ed.)"SBMA Adopts Filipino Invention for Oil Recovery to Protect Marine Area." Manila Bulletin 2007.
Cita MLA (9th ed.)"SBMA Adopts Filipino Invention for Oil Recovery to Protect Marine Area." Manila Bulletin, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.