Simeon, L. M. Manila Water, SG firms collaborate on water technology. The Philippine Star.
芝加哥风格引文Simeon, Louise Maureen. "Manila Water, SG Firms Collaborate on Water Technology." The Philippine Star .
MLA引文Simeon, Louise Maureen. "Manila Water, SG Firms Collaborate on Water Technology." The Philippine Star, .
警告：这些引文格式不一定是100％准确.