Poe, R. W. (1994). The McGraw-Hill handbook of business letters (3rd ed.). McGraw-Hill.
Chicago Style aipamenaPoe, Roy W. The McGraw-Hill Handbook of Business Letters. 3rd ed. New York: McGraw-Hill, 1994.
MLA aipamenaPoe, Roy W. The McGraw-Hill Handbook of Business Letters. 3rd ed. McGraw-Hill, 1994.
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