Hanna, M. S., & Wilson, G. L. (1998). Communicating in business and professional settings (4th ed.). McGraw-Hill.
Citace podle Chicago (17th ed.)Hanna, Michael S., a Gerald L. Wilson. Communicating in Business and Professional Settings. 4th ed. New York: McGraw-Hill, 1998.
Citace podle MLA (9th ed.)Hanna, Michael S., a Gerald L. Wilson. Communicating in Business and Professional Settings. 4th ed. McGraw-Hill, 1998.
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