Drucker Peter F. (2004). Effective Executive: The Definitive Guide to Getting the Right Things Done. HBR ,Harper Business.
Citação norma ChicagoDrucker Peter F. Effective Executive: The Definitive Guide to Getting the Right Things Done. UK: HBR ,Harper Business, 2004.
Citação norma MLADrucker Peter F. Effective Executive: The Definitive Guide to Getting the Right Things Done. HBR ,Harper Business, 2004.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.