Philippines. National Historical Institute. (1994). Historical markers: Regions V-XII. National Historical Institute.
Chicagoスタイル(17版)引用形式Philippines. National Historical Institute. Historical Markers: Regions V-XII. Manila: National Historical Institute, 1994.
MLA(9版)引用形式Philippines. National Historical Institute. Historical Markers: Regions V-XII. National Historical Institute, 1994.
警告: この引用は必ずしも正確ではありません.