Luz, G. (1998). Setting up a clean-air certificate program. Manila Times.
Chicagoスタイル(17版)引用形式Luz, Guillermo. "Setting Up a Clean-air Certificate Program." Manila Times 1998.
MLA(9版)引用形式Luz, Guillermo. "Setting Up a Clean-air Certificate Program." Manila Times, 1998.
警告: この引用は必ずしも正確ではありません.