The World Resources Institute. (1998). World resources 1998-99. Oxford University Press.
Chicago Edition CitationThe World Resources Institute. World Resources 1998-99. Oxford: Oxford University Press, 1998.
Deismireacht MLAThe World Resources Institute. World Resources 1998-99. Oxford University Press, 1998.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.