Lua APA (7ú heag.)
Gupta, B. R., & Singhal, V. (2001). Fundamentals of electric machines (2nd ed.). New Age International.
Lua i Stíl Chicago (17ú heag.)
Gupta, B. R., agus Vandana Singhal. Fundamentals of Electric Machines. 2nd ed. Calcutta: New Age International, 2001.
Lua MLA (9ú heag.)
Gupta, B. R., agus Vandana Singhal. Fundamentals of Electric Machines. 2nd ed. New Age International, 2001.
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