APA
World Health Organization, . (1999). IPCS (Environmental health criteria no - 211): Health effects of interactions between tobacco use and exposure to other agents. Geneva: UNEP and World Health Organization.
Chicago
World Health Organization, . 1999. IPCS (Environmental health criteria no - 211): Health effects of interactions between tobacco use and exposure to other agents. Geneva: UNEP and World Health Organization.
Harvard
World Health Organization, . (1999). IPCS (Environmental health criteria no - 211): Health effects of interactions between tobacco use and exposure to other agents. Geneva: UNEP and World Health Organization.
MLA
World Health Organization, . IPCS (Environmental health criteria no - 211): Health effects of interactions between tobacco use and exposure to other agents. Geneva: UNEP and World Health Organization. 1999.