APA (7e ed.) Bronvermelding

Information System (MDIS) & World Health Organization. (1995). Global prevalence of vitamin A deficiency. World Health Organization.

Chicago (17e ed.) Bronvermelding

Information System (MDIS) en World Health Organization. Global Prevalence of Vitamin A Deficiency. Geneva: World Health Organization, 1995.

MLA (9e ed.) Bronvermelding

Information System (MDIS) en World Health Organization. Global Prevalence of Vitamin A Deficiency. World Health Organization, 1995.