Cita APA (7th ed.)
Dumont, R. A. (1987). Business communications workbook. Little, Brown.
Cita Chicago (17th ed.)
Dumont, Raymond A. Business Communications Workbook. Boston: Little, Brown, 1987.
Cita MLA (9th ed.)
Dumont, Raymond A. Business Communications Workbook. Little, Brown, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.