The Hidden Rules of Successful Negotiation and Communication
  MLA
  Opresnik, Marc Oliver, and Marc O Opresnik. The Hidden Rules of Successful Negotiation and Communication. Springer International Publishing, 2014.
  APA
  Opresnik, M. Oliver, & Opresnik, M. O. (2014). The Hidden Rules of Successful Negotiation and Communication. Springer International Publishing.
  Chicago
  Opresnik, Marc Oliver, and Marc O Opresnik. The Hidden Rules of Successful Negotiation and Communication. : Springer International Publishing, 2014.