VIEIRA WALTER. (1985). SALES MANAGERS. INDIA BOOK HOUSE.
Chicago Style (17. basım) AtıfVIEIRA WALTER. SALES MANAGERS. BOMBAY: INDIA BOOK HOUSE, 1985.
MLA (9th ed.) AtıfVIEIRA WALTER. SALES MANAGERS. INDIA BOOK HOUSE, 1985.
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