Citazione Stile APA (7a Edizione)

Drucker, P. F. (1986). Managing for results: Economic tasks and risk-taking decisions (1st Perennial Library ed.). Perennial Library.

Citazione stile Chigago Style (17a edizione)

Drucker, Peter F. Managing for Results: Economic Tasks and Risk-taking Decisions. 1st Perennial Library ed. New York: Perennial Library, 1986.

Citatione MLA (8a ed.)

Drucker, Peter F. Managing for Results: Economic Tasks and Risk-taking Decisions. 1st Perennial Library ed. Perennial Library, 1986.