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Dyfyniad Arddull ChicagoLazaro, Freddie G., and Roy C. Mabasa. "PH Asserts Sovereignty over 11 Islands in Northern Luzon." Manila Bulletin 2020.
Dyfyniad MLALazaro, Freddie G., and Roy C. Mabasa. "PH Asserts Sovereignty over 11 Islands in Northern Luzon." Manila Bulletin, 2020.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.