Louden, J. K. (1975). Effective director in action. American management associations.
Chicago Style aipamenaLouden, J. Keith. Effective Director in Action. New York: American management associations, 1975.
MLA aipamenaLouden, J. Keith. Effective Director in Action. American management associations, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.