Cita APA (7th ed.)

Baugh, L. (1998). How to write first class business correspondence. Viva.

Cita Chicago (17th ed.)

Baugh, L. How to Write First Class Business Correspondence. New Delhi: Viva, 1998.

Cita MLA (9th ed.)

Baugh, L. How to Write First Class Business Correspondence. Viva, 1998.