Dumont, R. A. (1987). Business communications workbook. Little, Brown.
Chicagoスタイル(17版)引用形式Dumont, Raymond A. Business Communications Workbook. Boston: Little, Brown, 1987.
MLA(9版)引用形式Dumont, Raymond A. Business Communications Workbook. Little, Brown, 1987.
警告: この引用は必ずしも正確ではありません.