Não informado. (1970). Leprosy surveillance. Center for Disease Control, Department of Health, Education Welfare.
Citação do estilo Chicago (17ª ed.)Não informado. Leprosy Surveillance. Atlanta, Ga: Center for Disease Control, Department of Health, Education Welfare, 1970.
Citação MLA (8ª ed.)Não informado. Leprosy Surveillance. Center for Disease Control, Department of Health, Education Welfare, 1970.
警告：這些引文格式不一定是100％准確.