WHO. (1995). Onchocerciasis and its contrl. Geneva.
Chicago Style aipamenaWHO. Onchocerciasis and Its Contrl. Geneva, 1995.
MLA aipamenaWHO. Onchocerciasis and Its Contrl. Geneva, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena