Ilagan, A. (1990). Quake-proof technology spares Makati buildings. Manila Bulletin.
Chicagoスタイル(17版)引用形式Ilagan, Aris. "Quake-proof Technology Spares Makati Buildings." Manila Bulletin 1990.
MLA(9版)引用形式Ilagan, Aris. "Quake-proof Technology Spares Makati Buildings." Manila Bulletin, 1990.
警告: この引用は必ずしも正確ではありません.