Não informado. (1976). Advance Data from Vital & Health Statistics. National Center for Health Statistics.
Chicagoスタイル(17版)引用形式Não informado. Advance Data from Vital & Health Statistics. Hyattsville, Md: National Center for Health Statistics, 1976.
MLA(8版)引用形式Não informado. Advance Data from Vital & Health Statistics. National Center for Health Statistics, 1976.
警告: この引用は必ずしも正確ではありません.