Cita APA (7th ed.)

Marshall, D. R. (1999). The four elements of successful management. AMACOM.

Cita Chicago (17th ed.)

Marshall, Don R. The Four Elements of Successful Management. New York: AMACOM, 1999.

Cita MLA (9th ed.)

Marshall, Don R. The Four Elements of Successful Management. AMACOM, 1999.