TY - BOOK AU - Zichermann, Gabe AU - Linder, Joselin TI - Game- based marketing : Inspire customer loyalty through rewards, challenges, and contests SN - 978047056039 U1 - 658.812 PY - 2010/// CY - Hoboken PB - John Wiley & sons KW - Marketing KW - Customer loyalty KW - Customer loyalty programme KW - Game bodes marketing ER -