World Health Assembly. (1982). Control of vitamin A deficiency and xerophthalmia: Report of a joint WHO, UNICEF, USAID, Helen Keller International, IVACG meeting. World Health Organization.
Chicago-Zitierstil (17. Ausg.)World Health Assembly. Control of Vitamin A Deficiency and Xerophthalmia: Report of a Joint WHO, UNICEF, USAID, Helen Keller International, IVACG Meeting. Geneva: World Health Organization, 1982.
MLA-Zitierstil (9. Ausg.)World Health Assembly. Control of Vitamin A Deficiency and Xerophthalmia: Report of a Joint WHO, UNICEF, USAID, Helen Keller International, IVACG Meeting. World Health Organization, 1982.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.