Drucker, P. F. (2007). People and Performance. Oxford: Butterwoth Heinemann.
Chicago Style aipamenaDrucker, Peter F. People and Performance. New York: Oxford: Butterwoth Heinemann, 2007.
MLA aipamenaDrucker, Peter F. People and Performance. Oxford: Butterwoth Heinemann, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.