Peart, M. (2005). Understanding Investors in People in a week. Hodder & Stoughton.
Lua i Stíl Chicago (17ú heag.)Peart, Mike. Understanding Investors in People in a Week. London: Hodder & Stoughton, 2005.
Lua MLA (8ú heag.)Peart, Mike. Understanding Investors in People in a Week. Hodder & Stoughton, 2005.
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