Siskind, C. S. (1952). Direct current machinery. McGraw-Hill.
Tohutoru Kātū Chicago (17th ed.)Siskind, Charles Seymour. Direct Current Machinery. Nueva York: McGraw-Hill, 1952.
Tohutoro MLA (9th ed.)Siskind, Charles Seymour. Direct Current Machinery. McGraw-Hill, 1952.
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