Hughes, R. L. (2006). Leadership: Enhancing the lessons. Boston: McGraw-Hill Irwin.
Chicago Style aipamenaHughes, Richard L. Leadership: Enhancing the Lessons. Boston: McGraw-Hill Irwin, 2006.
MLA aipamenaHughes, Richard L. Leadership: Enhancing the Lessons. Boston: McGraw-Hill Irwin, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.