Marks, R. B. (1997). Personal selling: A relationship approach (6. ed.). Prentice Hall.
Chicago Style (17th ed.) CitationMarks, Ronald B. Personal Selling: A Relationship Approach. 6. ed. Upper Saddle River, NJ: Prentice Hall, 1997.
MLA (9th ed.) CitationMarks, Ronald B. Personal Selling: A Relationship Approach. 6. ed. Prentice Hall, 1997.
Warning: These citations may not always be 100% accurate.