United Nations Conference on Trade and Development. (2005). 2005 Handbook of Statistics. UNCTAD. Retrieved Feb. 11, 2006 from: http://www.unctad.org/Templates/webflyer.aspdocid=6558&.intItemID=2068&.lang=1&.mode=downloads.
United Nations Conference on Trade and Development. (2005). 2005 Handbook of Statistics. UNCTAD. Retrieved Feb. 11, 2006 from: http://www.unctad.org/Templates/webflyer.aspdocid=6558&.intItemID=2068&.lang=1&.mode=downloads.