Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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