APA
World Health Organization, . (1971). Cumulative list of proposed international nonproprietary names for pharmaceutical substances: Lists 1 - 25 published in the WHO chronical 1953 - 1971. Geneva: World Health Oraganization.
Chicago
World Health Organization, . 1971. Cumulative list of proposed international nonproprietary names for pharmaceutical substances: Lists 1 - 25 published in the WHO chronical 1953 - 1971. Geneva: World Health Oraganization.
Harvard
World Health Organization, . (1971). Cumulative list of proposed international nonproprietary names for pharmaceutical substances: Lists 1 - 25 published in the WHO chronical 1953 - 1971. Geneva: World Health Oraganization.
MLA
World Health Organization, . Cumulative list of proposed international nonproprietary names for pharmaceutical substances: Lists 1 - 25 published in the WHO chronical 1953 - 1971. Geneva: World Health Oraganization. 1971.