Cita APA (7th ed.)

Drucker, P. F. (1982). The changing world of the executive. Heinemann.

Cita Chicago (17th ed.)

Drucker, Peter F. The Changing World of the Executive. London: Heinemann, 1982.

Cita MLA (8th ed.)

Drucker, Peter F. The Changing World of the Executive. Heinemann, 1982.