STILL RICHARD R. (1995). SALES MANAGEMENT: DECISION, STRATEGIES AND CASES (5TH.). PRENTICE HALL OF INDIA.
Chicago Style aipamenaSTILL RICHARD R. SALES MANAGEMENT: DECISION, STRATEGIES AND CASES. 5TH. NEW DELHI: PRENTICE HALL OF INDIA, 1995.
MLA aipamenaSTILL RICHARD R. SALES MANAGEMENT: DECISION, STRATEGIES AND CASES. 5TH. PRENTICE HALL OF INDIA, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.