1. Marketing by the numbers by Harden, Leland. Publication: New York : AMACOM-American Management Association, 2011 . 1 online resource (viii, 246 p.) : , Includes index. Date:2011 Availability: No items available: Actions: Add to cart
2. Digital engagement by Harden, Leland. Publication: New York : AMACON, 2009 . 1 online resource (xii, 244 p.) : Date:2009 Availability: No items available: Actions: Add to cart