Orchard, F. C. (1935). Mercury arc rectifier practice. Chapman & Hall ltd..
Lua i Stíl Chicago (17ú heag.)Orchard, Frederick Charles. Mercury Arc Rectifier Practice. London,: Chapman & Hall ltd., 1935.
Lua MLA (8ú heag.)Orchard, Frederick Charles. Mercury Arc Rectifier Practice. Chapman & Hall ltd., 1935.
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