Robertson, J. C., & Louwers, T. J. (2002). Auditing and assurance services (10th ed.). Boston: McGraw-Hill.
Chicago Style aipamenaRobertson, Jack C., và Timothy J. Louwers. Auditing and Assurance Services. 10th ed. Boston: McGraw-Hill, 2002.
MLA aipamenaRobertson, Jack C., và Timothy J. Louwers. Auditing and Assurance Services. 10th ed. Boston: McGraw-Hill, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.