STILL RICHARD R. (1995). SALES MANAGEMENT: DECISION, STRATEGIES AND CASES (5TH.). PRENTICE HALL OF INDIA.
Lua i Stíl Chicago (17ú heag.)STILL RICHARD R. SALES MANAGEMENT: DECISION, STRATEGIES AND CASES. 5TH. NEW DELHI: PRENTICE HALL OF INDIA, 1995.
Lua MLA (9ú heag.)STILL RICHARD R. SALES MANAGEMENT: DECISION, STRATEGIES AND CASES. 5TH. PRENTICE HALL OF INDIA, 1995.
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