Biller, D., & Nabi, I. (2013). Investing in infrastructure harnessing its potential for economic growth in Sri Lanka. World Bank.
Chicago Style (17th ed.) ZitazioaBiller, Dan, eta Ijaz Nabi. Investing in Infrastructure Harnessing Its Potential for Economic Growth in Sri Lanka. Washington, D.C.: World Bank, 2013.
MLA (9th ed.) ZitazioaBiller, Dan, eta Ijaz Nabi. Investing in Infrastructure Harnessing Its Potential for Economic Growth in Sri Lanka. World Bank, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.