Marketing. Chapter 19 ; Personal selling : a Mary Kay story. Chapter 20, 21 : Yoplait, USA.

Marketing. Chapter 19 ; Personal selling : a Mary Kay story. Chapter 20, 21 : Yoplait, USA. 3rd ed / [videorecording] : Eric Berkowitz ...[et al.]. - Homewood, IL. : Irwin, 1992. - 27.17 mins.

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Marketing.
Marketing--Case studies.