Levinson, N. S. (2000). How to sharpen your business writing skills (2nd ed.). American Management Association.
Citace podle Chicago (17th ed.)Levinson, Nan S. How to Sharpen Your Business Writing Skills. 2nd ed. [Saranac Lake, N.Y.]: American Management Association, 2000.
Citace podle MLA (9th ed.)Levinson, Nan S. How to Sharpen Your Business Writing Skills. 2nd ed. American Management Association, 2000.
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