Harden, L., Heyman, B. Marketing by the Numbers. New York: AMACOM, 2011 246 p. 978-0-8144-1620-4.
Harden, L., Heyman, B. Marketing by the Numbers. New York: AMACOM, 2011 246 p. 978-0-8144-1620-4.
Harden, L., Heyman, B. (2011) Marketing by the Numbers, New York: AMACOM 246 p. 978-0-8144-1620-4.
Harden, L., & Heyman, B. (2011). Marketing by the Numbers. How to Measure and Improve the ROI of Any Campaign. New York: AMACOM, 246 p.
Harden L, Heyman B. Marketing by the Numbers: How to Measure and Improve the ROI of Any Campaign. New York: AMACOM; 2011. p. 246 p. ISBN: 978-0-8144-1620-4.