APA استشهاد

Drucker, P. F. (1992). Managing for the future. Routledge.

استشهاد بنمط شيكاغو

Drucker, Peter F. Managing for the Future. London: Routledge, 1992.

MLA استشهاد

Drucker, Peter F. Managing for the Future. Routledge, 1992.