World Health Organization. (2006). WHO expert committee on specifications for pharmaceutical preparations (4th ed.). World Health Organization.
Chicago Style aipamenaWorld Health Organization. WHO Expert Committee on Specifications for Pharmaceutical Preparations. 4th ed. Geneva: World Health Organization, 2006.
MLA aipamenaWorld Health Organization. WHO Expert Committee on Specifications for Pharmaceutical Preparations. 4th ed. World Health Organization, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.