Não informado. (2001). National health insurance. Medical Research Committe.
Chicagoスタイル(17版)引用形式Não informado. National Health Insurance. London: Medical Research Committe, 2001.
MLA(8版)引用形式Não informado. National Health Insurance. Medical Research Committe, 2001.
警告: この引用は必ずしも正確ではありません.