World Health Organization. (1999). Tropical disease research progress 1997-98: Fourteenth programme report. WHO.
Chicago Style (17th ed.) CitationWorld Health Organization. Tropical Disease Research Progress 1997-98: Fourteenth Programme Report. Geneva, CH: WHO, 1999.
MLA (9th ed.) CitationWorld Health Organization. Tropical Disease Research Progress 1997-98: Fourteenth Programme Report. WHO, 1999.