Gaya APA
      Fitzsimmons, J, A., Fitzsimmons, M, J. (2008).
    Service management : operations, strategy, information technology (Sixt edition).
    Boston:
  McGraw-Hill.
  
Gaya MLA
      Fitzsimmons, James, A.., Fitzsimmons, Mona, J..
    "Service management : operations, strategy, information technology".
    Sixt edition
    Boston:
  McGraw-Hill,
  2008.
  Text.