Παραπομπή APA

Drucker, P. F. (1964). Managing for results: Economic tasks and risk-taking decisions. Heineann.

Παραπομπή Chicago Style

Drucker, Peter F. Managing for Results: Economic Tasks and Risk-taking Decisions. London: Heineann, 1964.

Παραπομπή MLA

Drucker, Peter F. Managing for Results: Economic Tasks and Risk-taking Decisions. Heineann, 1964.