Piper, C. E. (2014). Investigator and fraud fighter guidebook: Operation war stories. Wiley.
Lua i Stíl Chicago (17ú heag.)Piper, Charles E. Investigator and Fraud Fighter Guidebook: Operation War Stories. Hoboken, New Jersey: Wiley, 2014.
Lua MLA (9ú heag.)Piper, Charles E. Investigator and Fraud Fighter Guidebook: Operation War Stories. Wiley, 2014.
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