Gaya APA
Drucker, Peter F.. (2008).
The essential drucker: the best of sixty years of Peter Drucker's essential writings on management .
New York:
HarperBusiness Essentials.
Gaya Chicago
Drucker, Peter F..
The essential drucker: the best of sixty years of Peter Drucker's essential writings on management.
New York:
HarperBusiness Essentials,
2008.
Text.
Gaya MLA
Drucker, Peter F..
The essential drucker: the best of sixty years of Peter Drucker's essential writings on management.
New York:
HarperBusiness Essentials,
2008.
Text.
Gaya Turabian
Drucker, Peter F..
The essential drucker: the best of sixty years of Peter Drucker's essential writings on management.
New York:
HarperBusiness Essentials,
2008.
Print.