Rohrs, Jeffrey K. Audience : marketing in the age of subscribers, fans & followers / Jeffrey K. Rohrs. - Hoboken, N.J. : Wiley, ©2014. - 278 p. : ill. Includes index ISBN: Subjects--Topical Terms: Internet marketingSocial mediaElectronic books LC Class. No.: HF5415.1265 / R637A 2014