Concept
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The History of the Marketing Concept
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"New Media and Internet Marketing Degree Now Offered at University College - DU Profesional Education."
http://www.duprofessionaled.com/index.php/2012/01/new-media-and-internet-marketing-specialty-now-offered/
University of Denver
CC BY.