Sibal, D. C. (2013). Kalayaan Hall, Malacanang: Halls of freedom, pillars of treasure. People Asia.
Chicagoスタイル(17版)引用形式Sibal, Dianne Carla. "Kalayaan Hall, Malacanang: Halls of Freedom, Pillars of Treasure." People Asia 2013.
MLA(9版)引用形式Sibal, Dianne Carla. "Kalayaan Hall, Malacanang: Halls of Freedom, Pillars of Treasure." People Asia, 2013.
警告: この引用は必ずしも正確ではありません.