Pickett, K. H. S. (2011). The essential guide to internal auditing (2nd ed.). Wiley.
Lua i Stíl Chicago (17ú heag.)Pickett, K. H. Spencer. The Essential Guide to Internal Auditing. 2nd ed. Chichester, West Sussex: Wiley, 2011.
Lua MLA (9ú heag.)Pickett, K. H. Spencer. The Essential Guide to Internal Auditing. 2nd ed. Wiley, 2011.
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