Fitzgerald, A. E., Kingsley, C., & Umans, S. D. (2003). Electric machinery (6th ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Fitzgerald, A. E., Charles Kingsley, agus Stephen D. Umans. Electric Machinery. 6th ed. Boston, Mass. ; New York, New Delhi: McGraw-Hill, 2003.
Lua MLA (8ú heag.)Fitzgerald, A. E., et al. Electric Machinery. 6th ed. McGraw-Hill, 2003.
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