Knapp, M. C. (2007). Auditing CasesMichael C. Knapp. Thomson South-Western.
Lua i Stíl Chicago (17ú heag.)Knapp, Michael C. Auditing CasesMichael C. Knapp. Thomson South-Western, 2007.
Lua MLA (8ú heag.)Knapp, Michael C. Auditing CasesMichael C. Knapp. Thomson South-Western, 2007.
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