Não informado. (1983). IT Focus. Institution of Electrical Engineers.
Chicagoスタイル(17版)引用形式Não informado. IT Focus. Hitchin, Inglaterra: Institution of Electrical Engineers, 1983.
MLA(8版)引用形式Não informado. IT Focus. Institution of Electrical Engineers, 1983.
警告: この引用は必ずしも正確ではありません.