DAVIS, G. B. (1977). Auditing & E D P Gordon, B. Davis. American Institute of Certifie.
Lua i Stíl Chicago (17ú heag.)DAVIS, Gordon B. Auditing & E D P Gordon, B. Davis. American Institute of Certifie, 1977.
Lua MLA (8ú heag.)DAVIS, Gordon B. Auditing & E D P Gordon, B. Davis. American Institute of Certifie, 1977.
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