APA (7th ed.) Citation

Afroz, R., Hassan, M. N., Awang, M., & Ibrahim, N. A. (2005). Willingness to pay for air quality improvements in Klang Valley Malaysia. Science Publications.

Chicago Style (17th ed.) Citation

Afroz, Rafia, Mohd Nasir Hassan, Muhamad Awang, and Noor Akma Ibrahim. Willingness to Pay for Air Quality Improvements in Klang Valley Malaysia. Science Publications, 2005.

MLA (9th ed.) Citation

Afroz, Rafia, et al. Willingness to Pay for Air Quality Improvements in Klang Valley Malaysia. Science Publications, 2005.