Guffey, M. E. (2008). Essentials of business communication. Thomson.
Chicagoスタイル(17版)引用形式Guffey, Mary Ellen. Essentials of Business Communication. Thomson, 2008.
MLA(8版)引用形式Guffey, Mary Ellen. Essentials of Business Communication. Thomson, 2008.
警告: この引用は必ずしも正確ではありません.