Cita APA

 Whittington, R. (2008).  Principles of auditing & other assurance services.  McGraw-Hill/Irwin.

Chicago Style Citation

 Whittington, Ray.  Principles of Auditing & Other Assurance Services.  McGraw-Hill/Irwin, 2008.

Cita MLA

 Whittington, Ray.  Principles of Auditing & Other Assurance Services.  McGraw-Hill/Irwin, 2008.