APA aipamena

Drucker, P. (1992). Managing for the future: The 1990s and beyond. TMH.

Chicago Style aipamena

Drucker, Peter. Managing for the Future: The 1990s and Beyond. New delhi: TMH, 1992.

MLA aipamena

Drucker, Peter. Managing for the Future: The 1990s and Beyond. TMH, 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.