Cita APA (7a ed.)
Drucker, P. F. (2007). The essential Drucker: Selections from the management works of Peter F. Drucker (Classic Drucker Collection ed.). Elsevier.
Cita Chicago Style (17a ed.)
Drucker, Peter F. The Essential Drucker: Selections from the Management Works of Peter F. Drucker. Classic Drucker Collection ed. Oxford, UK: Elsevier, 2007.
Cita MLA (9a ed.)
Drucker, Peter F. The Essential Drucker: Selections from the Management Works of Peter F. Drucker. Classic Drucker Collection ed. Elsevier, 2007.
Precaución: Estas citas no son 100% exactas.