Gaya APA
Drucker, Peter F.. (2002).
Effective Executive, The : The Definitive Guide to getting the right things done .
New York, USA:
Harper Business Essentials.
Gaya Chicago
Drucker, Peter F..
Effective Executive, The : The Definitive Guide to getting the right things done.
New York, USA:
Harper Business Essentials,
2002.
Academic.
Gaya MLA
Drucker, Peter F..
Effective Executive, The : The Definitive Guide to getting the right things done.
New York, USA:
Harper Business Essentials,
2002.
Academic.
Gaya Turabian
Drucker, Peter F..
Effective Executive, The : The Definitive Guide to getting the right things done.
New York, USA:
Harper Business Essentials,
2002.
Academic.