Cita APA (7th ed.)

Hanna, M. S., & Wilson, G. L. (1998). Communicating in business and professional settings (4th ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Hanna, Michael S., i Gerald L. Wilson. Communicating in Business and Professional Settings. 4th ed. New York: McGraw-Hill, 1998.

Cita MLA (9th ed.)

Hanna, Michael S., i Gerald L. Wilson. Communicating in Business and Professional Settings. 4th ed. McGraw-Hill, 1998.