Cita APA (7th ed.)
McGregor, D. (1967). The Professional manager. McGraw-Hill.
Cita Chicago (17th ed.)
McGregor, Douglas. The Professional Manager. New York: McGraw-Hill, 1967.
Cita MLA (9th ed.)
McGregor, Douglas. The Professional Manager. McGraw-Hill, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.