APA
World Health Organization, . (1987). Tetrachloro-ethylene health and safety guide. World Health Organization, Geneva: .
Chicago
World Health Organization, . 1987. Tetrachloro-ethylene health and safety guide. World Health Organization, Geneva: .
Harvard
World Health Organization, . (1987). Tetrachloro-ethylene health and safety guide. World Health Organization, Geneva: .
MLA
World Health Organization, . Tetrachloro-ethylene health and safety guide. World Health Organization, Geneva: . 1987.