Philippines. National Statistics Office. (1988). Philippine energy statistics. The Office.
Chicagoスタイル(17版)引用形式Philippines. National Statistics Office. Philippine Energy Statistics. Manila: The Office, 1988.
MLA(9版)引用形式Philippines. National Statistics Office. Philippine Energy Statistics. The Office, 1988.
警告: この引用は必ずしも正確ではありません.