World Health Organization; Onchocerciasis Control Programme in the Volta River Basin Area; Thylefors, B.(Onchocerciasis Control Programme in the Volta River Basin Area, 1978)
Joint FAO/WHO Expert Committee on Food Additives. Meeting (42nd : 1994: Rome, Italy); World Health Organization; Food and Agriculture Organization of the United Nations(Food and Agriculture Organization, 1994)