Whittington, O. R. (2000). Principles of auditing and other assurance servicesO. Ray Whittington, Kurt Pany. McGraw-Hill.
Chicago-viite (17. p.)Whittington, O. Ray. Principles of Auditing and Other Assurance ServicesO. Ray Whittington, Kurt Pany. McGraw-Hill, 2000.
MLA-viite (8. p.)Whittington, O. Ray. Principles of Auditing and Other Assurance ServicesO. Ray Whittington, Kurt Pany. McGraw-Hill, 2000.
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