APA Citation

Harden, L., & Heyman, B. (2011). Marketing by the numbers: How to measure and improve the ROI of any campaign. New York: AMACOM.

Chicago Style Citation

Harden, Leland, and Bob Heyman. Marketing By the Numbers: How to Measure and Improve the ROI of Any Campaign. New York: AMACOM, 2011.

MLA Citation

Harden, Leland, and Bob Heyman. Marketing By the Numbers: How to Measure and Improve the ROI of Any Campaign. New York: AMACOM, 2011.

Warning: These citations may not always be 100% accurate.