2007-2008 Global Sales Perceptions Report: Is the Sales Force Delivering Business Value?
  MLA
  2007-2008 Global Sales Perceptions Report: Is the Sales Force Delivering Business Value?. Development Dimensions International, Inc. (DDI), .
  APA
  2007-2008 Global Sales Perceptions Report: Is the Sales Force Delivering Business Value?. Development Dimensions International, Inc. (DDI).
  Chicago
  2007-2008 Global Sales Perceptions Report: Is the Sales Force Delivering Business Value?. : Development Dimensions International, Inc. (DDI).