FORTUNE JOYCE [A], P. G. [. (2005). LEARNING FROM FAILURE: THE SYSTEMS APPROCH. JOHN WILEY & SONS.
Chicago Style aipamenaFORTUNE JOYCE [A], PETERS GEOFF [A]. LEARNING FROM FAILURE: THE SYSTEMS APPROCH. CHICHESTER: JOHN WILEY & SONS, 2005.
MLA aipamenaFORTUNE JOYCE [A], PETERS GEOFF [A]. LEARNING FROM FAILURE: THE SYSTEMS APPROCH. JOHN WILEY & SONS, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.