Não informado. (1970). Leprosy surveillance. Center for Disease Control, Department of Health, Education Welfare.
Chicago-referens (17:e uppl.)Não informado. Leprosy Surveillance. Atlanta, Ga: Center for Disease Control, Department of Health, Education Welfare, 1970.
MLA-referens (8:e uppl.)Não informado. Leprosy Surveillance. Center for Disease Control, Department of Health, Education Welfare, 1970.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.