APA (7 वां संस्करण) प्रशस्ति पत्र
Levinson, N. S. (2000). How to sharpen your business writing skills (2nd ed.). American Management Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Levinson, Nan S. How to Sharpen Your Business Writing Skills. 2nd ed. [Saranac Lake, N.Y.]: American Management Association, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Levinson, Nan S. How to Sharpen Your Business Writing Skills. 2nd ed. American Management Association, 2000.
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