Gaya APA

Thill, J, V., Bovee, C, L. (1993). Excelence in business communication (2). New York: Mc Graw Hill.

Gaya MLA

Thill, John, V., Bovee, Courtland, L. "Excelence in business communication". 2 New York: Mc Graw Hill, 1993. Text.