TY - BOOK AU - Gallo, Carmine TI - The power of foursquare: 7 innovative ways to get your customers to check in wherever they are SN - 9780071773171: U1 - 658.8 GAL 2012 PY - 2012/// CY - United States PB - McGraw Hill KW - Business enterprises KW - Computer networks KW - Customer relations KW - Internet marketing KW - Location-based services KW - Online social networks ER -