Whittington, R., & Pany, K. (2001). Principles of auditing and other assurance services (13th ed.). Irwin/McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Whittington, Ray, agus Kurt Pany. Principles of Auditing and Other Assurance Services. 13th ed. Boston: Irwin/McGraw-Hill, 2001.
Lua MLA (8ú heag.)Whittington, Ray, agus Kurt Pany. Principles of Auditing and Other Assurance Services. 13th ed. Irwin/McGraw-Hill, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.