APA (7th ed.) Citation

Cheng, S. (2010). The effects of air pollution. Sama Publications & Distributors Sdn. Bhd..

Chicago Style (17th ed.) Citation

Cheng, Sheila. The Effects of Air Pollution. Petaling Jaya: Sama Publications & Distributors Sdn. Bhd., 2010.

MLA (9th ed.) Citation

Cheng, Sheila. The Effects of Air Pollution. Sama Publications & Distributors Sdn. Bhd., 2010.

Warning: These citations may not always be 100% accurate.