Não informado. (1975). Key abstracts. Institution of Electrical Engineers.
Chicagoスタイル(17版)引用形式Não informado. Key Abstracts. London: Institution of Electrical Engineers, 1975.
MLA(8版)引用形式Não informado. Key Abstracts. Institution of Electrical Engineers, 1975.
警告: この引用は必ずしも正確ではありません.