APA
Rathnayake R., . (2017). Monitoring air pollution in the city of colombo using passive sampling method. Rajagiriya: Institute of chemistry ceylon.
Chicago
Rathnayake R.M.S.D, . 2017. Monitoring air pollution in the city of colombo using passive sampling method. Rajagiriya: Institute of chemistry ceylon.
Harvard
Rathnayake R., . (2017). Monitoring air pollution in the city of colombo using passive sampling method. Rajagiriya: Institute of chemistry ceylon.
MLA
Rathnayake R.M.S.D, . Monitoring air pollution in the city of colombo using passive sampling method. Rajagiriya: Institute of chemistry ceylon. 2017.