Messier, W. F. (2000). Auditing & assurance services: A systematic approach (2nd ed.).
Lua i Stíl Chicago (17ú heag.)Messier, William F. Auditing & Assurance Services: A Systematic Approach. 2nd ed. Boston, Irwin McGraw-Hill, 2000.
Lua MLA (9ú heag.)Messier, William F. Auditing & Assurance Services: A Systematic Approach. 2nd ed. 2000.
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