Não informado. (1971). Health Devices. Emergency Care Research Institute.
Chicagoスタイル(17版)引用形式Não informado. Health Devices. Philadelphia, Pa: Emergency Care Research Institute, 1971.
MLA(8版)引用形式Não informado. Health Devices. Emergency Care Research Institute, 1971.
警告: この引用は必ずしも正確ではありません.