Peart, M. (2005). Understanding Investors in People in a week. Hodder & Stoughton.
Chicago Style aipamenaPeart, Mike. Understanding Investors in People in a Week. London: Hodder & Stoughton, 2005.
MLA aipamenaPeart, Mike. Understanding Investors in People in a Week. Hodder & Stoughton, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.