Hess, P. S. (1996). Management: Responsibity for performance.
Chicago Style aipamenaHess, Peter; Siciliano. Management: Responsibity for Performance. Mc Graw Hill: New York, 1996.
MLA aipamenaHess, Peter; Siciliano. Management: Responsibity for Performance. 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.