APA
World Health Organization, . (1993). Polybrominated biphenyls (PBBs) health and safety guide. World Health Organization, Geneva: .
Chicago
World Health Organization, . 1993. Polybrominated biphenyls (PBBs) health and safety guide. World Health Organization, Geneva: .
Harvard
World Health Organization, . (1993). Polybrominated biphenyls (PBBs) health and safety guide. World Health Organization, Geneva: .
MLA
World Health Organization, . Polybrominated biphenyls (PBBs) health and safety guide. World Health Organization, Geneva: . 1993.