APA (7th ed.) Zitazioa
Heifetz, R. A. (1994). Leadership without easy answers. Belknap Press of Harvard University Press.
Chicago Style (17th ed.) Zitazioa
Heifetz, Ronald A. Leadership Without Easy Answers. Cambridge, MA: Belknap Press of Harvard University Press, 1994.
MLA (9th ed.) Zitazioa
Heifetz, Ronald A. Leadership Without Easy Answers. Belknap Press of Harvard University Press, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.