APA (7 वां संस्करण) प्रशस्ति पत्र
Hughes,Austin, & Bill Drury. (2013). Electric motors and drives: Fundamentals,types,and applications austin hughes and bill drury (4th ed.). Elsevier Ltd.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Hughes,Austin, और Bill Drury. Electric Motors and Drives: Fundamentals,types,and Applications Austin Hughes and Bill Drury. 4th ed. New Delhi: Elsevier Ltd, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Hughes,Austin, और Bill Drury. Electric Motors and Drives: Fundamentals,types,and Applications Austin Hughes and Bill Drury. 4th ed. Elsevier Ltd, 2013.
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