APA (7th ed.) Citation

WHO Task Group on Environmental Health Criteria for Lead--Environmental Aspects, United Nations Environment Programme, International Labour Organisation, World Health Organization, & International Program on Chemical Safety. (1989). Lead, environmental aspects. World Health Organization.

Chicago Style (17th ed.) Citation

WHO Task Group on Environmental Health Criteria for Lead--Environmental Aspects, United Nations Environment Programme, International Labour Organisation, World Health Organization, and International Program on Chemical Safety. Lead, Environmental Aspects. Geneva: World Health Organization, 1989.

MLA (9th ed.) Citation

WHO Task Group on Environmental Health Criteria for Lead--Environmental Aspects, et al. Lead, Environmental Aspects. World Health Organization, 1989.