Gaya APA
      Rand, P, M. (2014).
    Harnessing the Power of Word of Mouth and Social Media to Build Your Brain And Your Business (-).
    Amerika:
  McGraw-Hill.
  
Gaya MLA
      Rand, Paul, M..
    "Harnessing the Power of Word of Mouth and Social Media to Build Your Brain And Your Business".
    -
    Amerika:
  McGraw-Hill,
  2014.
  Textbook.