TERRILL C. (2001). MARKET LEADERSHIP STRATEGIES FOR SERVICE COMPANIES. NTC BUSINESS BOOKS.
Chicago-viite (17. p.)TERRILL C. MARKET LEADERSHIP STRATEGIES FOR SERVICE COMPANIES. CHICAGO: NTC BUSINESS BOOKS, 2001.
MLA-viite (9. p.)TERRILL C. MARKET LEADERSHIP STRATEGIES FOR SERVICE COMPANIES. NTC BUSINESS BOOKS, 2001.
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