APA
WHO Technical report series 825, . (1992). The use of essential drugs. WHO, Geneva: .
Chicago
WHO Technical report series 825, . 1992. The use of essential drugs. WHO, Geneva: .
Harvard
WHO Technical report series 825, . (1992). The use of essential drugs. WHO, Geneva: .
MLA
WHO Technical report series 825, . The use of essential drugs. WHO, Geneva: . 1992.