Gaya APA
Drucker, Peter F.. (1993).
Post-capitalist society .
New York:
HarperBusiness.
Gaya Chicago
Drucker, Peter F..
Post-capitalist society.
New York:
HarperBusiness,
1993.
Text.
Gaya MLA
Drucker, Peter F..
Post-capitalist society.
New York:
HarperBusiness,
1993.
Text.
Gaya Turabian
Drucker, Peter F..
Post-capitalist society.
New York:
HarperBusiness,
1993.
Print.