Cita APA (7th ed.)
Levinson, N. S. (2000). How to sharpen your business writing skills (2nd ed.). American Management Association.
Cita Chicago (17th ed.)
Levinson, Nan S. How to Sharpen Your Business Writing Skills. 2nd ed. [Saranac Lake, N.Y.]: American Management Association, 2000.
Cita MLA (9th ed.)
Levinson, Nan S. How to Sharpen Your Business Writing Skills. 2nd ed. American Management Association, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.