APA
WHO, . (1989). Epidemiology of work-related diseases and accidents. Geneva: WHO.
Chicago
WHO, . 1989. Epidemiology of work-related diseases and accidents. Geneva: WHO.
Harvard
WHO, . (1989). Epidemiology of work-related diseases and accidents. Geneva: WHO.
MLA
WHO, . Epidemiology of work-related diseases and accidents. Geneva: WHO. 1989.