APA (7th ed.) Citation

Theng, L. C., Mohd Nasir Hassan, Muhamad Awang, & Mohd Yazid Saman. (2004). Evaluation of the pollution levels of landfill sites – the Landfill Pollution Index (LPI). Environmental Management Society, Malaysia.

Chicago Style (17th ed.) Citation

Theng, Lee Chong, Mohd Nasir Hassan, Muhamad Awang, and Mohd Yazid Saman. Evaluation of the Pollution Levels of Landfill Sites – the Landfill Pollution Index (LPI). Environmental Management Society, Malaysia, 2004.

MLA (8th ed.) Citation

Theng, Lee Chong, et al. Evaluation of the Pollution Levels of Landfill Sites – the Landfill Pollution Index (LPI). Environmental Management Society, Malaysia, 2004.