APA (7th ed.) Citation

Abdullah, A. M., Abu Samah, M. A., & Tham, Y. J. (2012). An overview of the air pollution trend in Klang Valley, Malaysia.

Chicago Style (17th ed.) Citation

Abdullah, Ahmad Makmom, Mohd Armi Abu Samah, and Yee Jun Tham. An Overview of the Air Pollution Trend in Klang Valley, Malaysia. 2012.

MLA (8th ed.) Citation

Abdullah, Ahmad Makmom, et al. An Overview of the Air Pollution Trend in Klang Valley, Malaysia. 2012.