Ong, C. B. H. (2002). Quality of tap water in 20 selected areas in Selangor / Christine Ong Boon Hwee.
Chicagoスタイル(17版)引用形式Ong, Christine Boon Hwee. Quality of Tap Water in 20 Selected Areas in Selangor / Christine Ong Boon Hwee. 2002.
MLA(9版)引用形式Ong, Christine Boon Hwee. Quality of Tap Water in 20 Selected Areas in Selangor / Christine Ong Boon Hwee. 2002.
警告: この引用は必ずしも正確ではありません.