Meyers, G. C., & Holusha, J. (1986). Managing crisis: A positive approach. Unwin Paperbacks.
Chicago Style aipamenaMeyers, Gerald C., and John Holusha. Managing Crisis: A Positive Approach. London: Unwin Paperbacks, 1986.
MLA aipamenaMeyers, Gerald C., and John Holusha. Managing Crisis: A Positive Approach. Unwin Paperbacks, 1986.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.