HUSEMAN R C. (1981). BUSINESS COMMUNICATIONS. HOLT SAUNDERS.
Chicago-čujuhus (17. p.)HUSEMAN R C. BUSINESS COMMUNICATIONS. TOKYO: HOLT SAUNDERS, 1981.
MLA-čujuhus (9. p.)HUSEMAN R C. BUSINESS COMMUNICATIONS. HOLT SAUNDERS, 1981.
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