Havard Business Review on. (1998). Leadership.
Chicago Style aipamenaHavard Business Review on. Leadership. Boston, 1998.
MLA aipamenaHavard Business Review on. Leadership. 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Havard Business Review on. (1998). Leadership.
Chicago Style aipamenaHavard Business Review on. Leadership. Boston, 1998.
MLA aipamenaHavard Business Review on. Leadership. 1998.