TY - BOOK AU - Zarrella,Dan TI - The social media marketing book SN - 9780596806606(pbk) U1 - 658.872 PY - 2010/// CY - Beijing, Cambridge PB - O'Reilly KW - Internet marketing KW - Social media KW - Economic aspects KW - Customer relations KW - Business enterprises N1 - Includes index ER -