APA (7th ed.) Zitazioa

el hefny, a. (1965). decision making systems in management. National Planning Institute.

Chicago Style (17th ed.) Zitazioa

el hefny, amina. Decision Making Systems in Management. cairo: National Planning Institute, 1965.

MLA (9th ed.) Zitazioa

el hefny, amina. Decision Making Systems in Management. National Planning Institute, 1965.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.