Gaya APA

Air quality management : considerations for developing countries / Lakdasa Wijetilleke and Suhashini A.R. Karunaratne. (1995). : Washington, D.C., World Bank.

Gaya MLA

Air quality management : considerations for developing countries / Lakdasa Wijetilleke and Suhashini A.R. Karunaratne. . : Washington, D.C., World Bank, 1995. Text.