(1995). Managing time.
Chicago Style aipamenaManaging Time. Harvard Business ReviewPress:Boston, 1995.
MLA aipamenaManaging Time. 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
(1995). Managing time.
Chicago Style aipamenaManaging Time. Harvard Business ReviewPress:Boston, 1995.
MLA aipamenaManaging Time. 1995.