APA
World Health Organization, . (1979). The international pharmacopoeia vol. 1. World Health Organization, Geneva: .
Chicago
World Health Organization, . 1979. The international pharmacopoeia vol. 1. World Health Organization, Geneva: .
Harvard
World Health Organization, . (1979). The international pharmacopoeia vol. 1. World Health Organization, Geneva: .
MLA
World Health Organization, . The international pharmacopoeia vol. 1. World Health Organization, Geneva: . 1979.