World Resources Institute. (1998). World resources 1998-1999 a guide to the global environment, Environmental change and human health.
Chicago Edition CitationWorld Resources Institute. World Resources 1998-1999 a Guide to the Global Environment, Environmental Change and Human Health. Newyork, Oxford, 1998.
Cita MLAWorld Resources Institute. World Resources 1998-1999 a Guide to the Global Environment, Environmental Change and Human Health. 1998.
Atenció: Aquestes cites poden no estar 100% correctes.