(2003). Managing crisis. Open University.
Chicago Style aipamenaManaging Crisis. Open University, 2003.
MLA aipamenaManaging Crisis. Open University, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(2003). Managing crisis. Open University.
Chicago Style aipamenaManaging Crisis. Open University, 2003.
MLA aipamenaManaging Crisis. Open University, 2003.