Poe, R. W. (2006). The McGraw-Hill handbook of business letters. Boston, M.A: McGraw-Hill.
Trích dẫn kiểu ChicagoPoe, Roy W. The McGraw-Hill Handbook of Business Letters. Boston, M.A: McGraw-Hill, 2006.
MLA CitationPoe, Roy W. The McGraw-Hill Handbook of Business Letters. Boston, M.A: McGraw-Hill, 2006.
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