APA
World Health Organization, . (1997). Quality assurance of pharmaceuticals : a compendium of guidelines and related materials : vol.I. WHO, Geneva: .
Chicago
World Health Organization, . 1997. Quality assurance of pharmaceuticals : a compendium of guidelines and related materials : vol.I. WHO, Geneva: .
Harvard
World Health Organization, . (1997). Quality assurance of pharmaceuticals : a compendium of guidelines and related materials : vol.I. WHO, Geneva: .
MLA
World Health Organization, . Quality assurance of pharmaceuticals : a compendium of guidelines and related materials : vol.I. WHO, Geneva: . 1997.