Parr, G. D. A. (1903). Electrical engineering measuring instruments for commercial and laboratory purposes. Blackie & Son.
Citace podle Chicago (17th ed.)Parr, George Dudley Aspinall. Electrical Engineering Measuring Instruments for Commercial and Laboratory Purposes. London, Glasgow [etc.]: Blackie & Son, 1903.
Citace podle MLA (8th ed.)Parr, George Dudley Aspinall. Electrical Engineering Measuring Instruments for Commercial and Laboratory Purposes. Blackie & Son, 1903.
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